Chimney plate warping

I have been trying to analyse a chimney using STAAD PRO. I always get an error saying that the members are warped.

here is my STAAD editor file. Please help me.

STAAD SPACE
START JOB INFORMATION
ENGINEER DATE 17-Apr-16
END JOB INFORMATION
INPUT WIDTH 79
UNIT METER KN
JOINT COORDINATES
1 0 2 0; 2 -0.347296 1.96962 0; 3 -0.68404 1.87939 0; 4 -1 1.73205 0;
5 -1.28558 1.53209 0; 6 -1.53209 1.28558 0; 7 -1.73205 1 0;
8 -1.87939 0.68404 0; 9 -1.96962 0.347296 0; 10 -2 1.22461e-016 0;
11 -1.96962 -0.347296 0; 12 -1.87939 -0.68404 0; 13 -1.73205 -1 0;
14 -1.53209 -1.28558 0; 15 -1.28558 -1.53209 0; 16 -1 -1.73205 0;
17 -0.68404 -1.87939 0; 18 -0.347296 -1.96962 0; 19 -2.44921e-016 -2 0;
20 0.347296 -1.96962 0; 21 0.68404 -1.87939 0; 22 1 -1.73205 0;
23 1.28558 -1.53209 0; 24 1.53209 -1.28558 0; 25 1.73205 -1 0;
26 1.87939 -0.68404 0; 27 1.96962 -0.347296 0; 28 2 -3.67382e-016 0;
29 1.96962 0.347296 0; 30 1.87939 0.68404 0; 31 1.73205 1 0;
32 1.53209 1.28558 0; 33 1.28558 1.53209 0; 34 1 1.73205 0;
35 0.68404 1.87939 0; 36 0.347296 1.96962 0; 37 0 2 5;
38 -0.347296 1.96962 5; 39 -0.68404 1.87939 5; 40 -1 1.73205 5;
41 -1.28558 1.53209 5; 42 -1.53209 1.28558 5; 43 -1.73205 1 5;
44 -1.87939 0.68404 5; 45 -1.96962 0.347296 5; 46 -2 1.22461e-016 5;
47 -1.96962 -0.347296 5; 48 -1.87939 -0.68404 5; 49 -1.73205 -1 5;
50 -1.53209 -1.28558 5; 51 -1.28558 -1.53209 5; 52 -1 -1.73205 5;
53 -0.68404 -1.87939 5; 54 -0.347296 -1.96962 5; 55 -2.44921e-016 -2 5;
56 0.347296 -1.96962 5; 57 0.68404 -1.87939 5; 58 1 -1.73205 5;
59 1.28558 -1.53209 5; 60 1.53209 -1.28558 5; 61 1.73205 -1 5;
62 1.87939 -0.68404 5; 63 1.96962 -0.347296 5; 64 2 -3.67382e-016 5;
65 1.96962 0.347296 5; 66 1.87939 0.68404 5; 67 1.73205 1 5;
68 1.53209 1.28558 5; 69 1.28558 1.53209 5; 70 1 1.73205 5;
71 0.68404 1.87939 5; 72 0.347296 1.96962 5; 73 0 2 10;
74 -0.347296 1.96962 10; 75 -0.68404 1.87939 10; 76 -1 1.73205 10;
77 -1.28558 1.53209 10; 78 -1.53209 1.28558 10; 79 -1.73205 1 10;
80 -1.87939 0.68404 10; 81 -1.96962 0.347296 10; 82 -2 1.22461e-016 10;
83 -1.96962 -0.347296 10; 84 -1.87939 -0.68404 10; 85 -1.73205 -1 10;
86 -1.53209 -1.28558 10; 87 -1.28558 -1.53209 10; 88 -1 -1.73205 10;
89 -0.68404 -1.87939 10; 90 -0.347296 -1.96962 10;
91 -2.44921e-016 -2 10; 92 0.347296 -1.96962 10; 93 0.68404 -1.87939 10;
94 1 -1.73205 10; 95 1.28558 -1.53209 10; 96 1.53209 -1.28558 10;
97 1.73205 -1 10; 98 1.87939 -0.68404 10; 99 1.96962 -0.347296 10;
100 2 -3.67382e-016 10; 101 1.96962 0.347296 10; 102 1.87939 0.68404 10;
103 1.73205 1 10; 104 1.53209 1.28558 10; 105 1.28558 1.53209 10;
106 1 1.73205 10; 107 0.68404 1.87939 10; 108 0.347296 1.96962 10;
109 0 2 15; 110 -0.347296 1.96962 15; 111 -0.68404 1.87939 15;
112 -1 1.73205 15; 113 -1.28558 1.53209 15; 114 -1.53209 1.28558 15;
115 -1.73205 1 15; 116 -1.87939 0.68404 15; 117 -1.96962 0.347296 15;
118 -2 1.22461e-016 15; 119 -1.96962 -0.347296 15;
120 -1.87939 -0.68404 15; 121 -1.73205 -1 15; 122 -1.53209 -1.28558 15;
123 -1.28558 -1.53209 15; 124 -1 -1.73205 15; 125 -0.68404 -1.87939 15;
126 -0.347296 -1.96962 15; 127 -2.44921e-016 -2 15;
128 0.347296 -1.96962 15; 129 0.68404 -1.87939 15; 130 1 -1.73205 15;
131 1.28558 -1.53209 15; 132 1.53209 -1.28558 15; 133 1.73205 -1 15;
134 1.87939 -0.68404 15; 135 1.96962 -0.347296 15;
136 2 -3.67382e-016 15; 137 1.96962 0.347296 15; 138 1.87939 0.68404 15;
139 1.73205 1 15; 140 1.53209 1.28558 15; 141 1.28558 1.53209 15;
142 1 1.73205 15; 143 0.68404 1.87939 15; 144 0.347296 1.96962 15;
145 0 2 20; 146 -0.347296 1.96962 20; 147 -0.68404 1.87939 20;
148 -1 1.73205 20; 149 -1.28558 1.53209 20; 150 -1.53209 1.28558 20;
151 -1.73205 1 20; 152 -1.87939 0.68404 20; 153 -1.96962 0.347296 20;
154 -2 1.22461e-016 20; 155 -1.96962 -0.347296 20;
156 -1.87939 -0.68404 20; 157 -1.73205 -1 20; 158 -1.53209 -1.28558 20;
159 -1.28558 -1.53209 20; 160 -1 -1.73205 20; 161 -0.68404 -1.87939 20;
162 -0.347296 -1.96962 20; 163 -2.44921e-016 -2 20;
164 0.347296 -1.96962 20; 165 0.68404 -1.87939 20; 166 1 -1.73205 20;
167 1.28558 -1.53209 20; 168 1.53209 -1.28558 20; 169 1.73205 -1 20;
170 1.87939 -0.68404 20; 171 1.96962 -0.347296 20;
172 2 -3.67382e-016 20; 173 1.96962 0.347296 20; 174 1.87939 0.68404 20;
175 1.73205 1 20; 176 1.53209 1.28558 20; 177 1.28558 1.53209 20;
178 1 1.73205 20; 179 0.68404 1.87939 20; 180 0.347296 1.96962 20;
181 0 2 25; 182 -0.347296 1.96962 25; 183 -0.68404 1.87939 25;
184 -1 1.73205 25; 185 -1.28558 1.53209 25; 186 -1.53209 1.28558 25;
187 -1.73205 1 25; 188 -1.87939 0.68404 25; 189 -1.96962 0.347296 25;
190 -2 1.22461e-016 25; 191 -1.96962 -0.347296 25;
192 -1.87939 -0.68404 25; 193 -1.73205 -1 25; 194 -1.53209 -1.28558 25;
195 -1.28558 -1.53209 25; 196 -1 -1.73205 25; 197 -0.68404 -1.87939 25;
198 -0.347296 -1.96962 25; 199 -2.44921e-016 -2 25;
200 0.347296 -1.96962 25; 201 0.68404 -1.87939 25; 202 1 -1.73205 25;
203 1.28558 -1.53209 25; 204 1.53209 -1.28558 25; 205 1.73205 -1 25;
206 1.87939 -0.68404 25; 207 1.96962 -0.347296 25;
208 2 -3.67382e-016 25; 209 1.96962 0.347296 25; 210 1.87939 0.68404 25;
211 1.73205 1 25; 212 1.53209 1.28558 25; 213 1.28558 1.53209 25;
214 1 1.73205 25; 215 0.68404 1.87939 25; 216 0.347296 1.96962 25;
217 0 2 30; 218 -0.347296 1.96962 30; 219 -0.68404 1.87939 30;
220 -1 1.73205 30; 221 -1.28558 1.53209 30; 222 -1.53209 1.28558 30;
223 -1.73205 1 30; 224 -1.87939 0.68404 30; 225 -1.96962 0.347296 30;
226 -2 1.22461e-016 30; 227 -1.96962 -0.347296 30;
228 -1.87939 -0.68404 30; 229 -1.73205 -1 30; 230 -1.53209 -1.28558 30;
231 -1.28558 -1.53209 30; 232 -1 -1.73205 30; 233 -0.68404 -1.87939 30;
234 -0.347296 -1.96962 30; 235 -2.44921e-016 -2 30;
236 0.347296 -1.96962 30; 237 0.68404 -1.87939 30; 238 1 -1.73205 30;
239 1.28558 -1.53209 30; 240 1.53209 -1.28558 30; 241 1.73205 -1 30;
242 1.87939 -0.68404 30; 243 1.96962 -0.347296 30;
244 2 -3.67382e-016 30; 245 1.96962 0.347296 30; 246 1.87939 0.68404 30;
247 1.73205 1 30; 248 1.53209 1.28558 30; 249 1.28558 1.53209 30;
250 1 1.73205 30; 251 0.68404 1.87939 30; 252 0.347296 1.96962 30;
253 0 2.6 -7.5; 254 0.451485 2.5605 -7.5; 255 0.889252 2.4432 -7.5;
256 1.3 2.25167 -7.5; 257 1.67125 1.99172 -7.5;
258 1.99172 1.67125 -7.5; 259 2.25167 1.3 -7.5;
260 2.4432 0.889252 -7.5; 261 2.5605 0.451485 -7.5;
262 2.6 1.59199e-016 -7.5; 263 2.5605 -0.451485 -7.5;
264 2.4432 -0.889252 -7.5; 265 2.25167 -1.3 -7.5;
266 1.99172 -1.67125 -7.5; 267 1.67125 -1.99172 -7.5;
268 1.3 -2.25167 -7.5; 269 0.889252 -2.4432 -7.5;
270 0.451485 -2.5605 -7.5; 271 3.18398e-016 -2.6 -7.5;
272 -0.451485 -2.5605 -7.5; 273 -0.889252 -2.4432 -7.5;
274 -1.3 -2.25167 -7.5; 275 -1.67125 -1.99172 -7.5;
276 -1.99172 -1.67125 -7.5; 277 -2.25167 -1.3 -7.5;
278 -2.4432 -0.889252 -7.5; 279 -2.5605 -0.451485 -7.5;
280 -2.6 -4.77596e-016 -7.5; 281 -2.5605 0.451485 -7.5;
282 -2.4432 0.889252 -7.5; 283 -2.25167 1.3 -7.5;
284 -1.99172 1.67125 -7.5; 285 -1.67125 1.99172 -7.5;
286 -1.3 2.25167 -7.5; 287 -0.889252 2.4432 -7.5;
288 -0.451485 2.5605 -7.5; 289 0 3.2 -15; 290 0.555674 3.15138 -15;
291 1.09446 3.00702 -15; 292 1.6 2.77128 -15; 293 2.05692 2.45134 -15;
294 2.45134 2.05692 -15; 295 2.77128 1.6 -15; 296 3.00702 1.09446 -15;
297 3.15138 0.555674 -15; 298 3.2 1.95937e-016 -15;
299 3.15138 -0.555674 -15; 300 3.00702 -1.09446 -15;
301 2.77128 -1.6 -15; 302 2.45134 -2.05692 -15;
303 2.05692 -2.45134 -15; 304 1.6 -2.77128 -15;
305 1.09446 -3.00702 -15; 306 0.555674 -3.15138 -15;
307 3.91874e-016 -3.2 -15; 308 -0.555674 -3.15138 -15;
309 -1.09446 -3.00702 -15; 310 -1.6 -2.77128 -15;
311 -2.05692 -2.45134 -15; 312 -2.45134 -2.05692 -15;
313 -2.77128 -1.6 -15; 314 -3.00702 -1.09446 -15;
315 -3.15138 -0.555674 -15; 316 -3.2 -5.87811e-016 -15;
317 -3.15138 0.555674 -15; 318 -3.00702 1.09446 -15;
319 -2.77128 1.6 -15; 320 -2.45134 2.05692 -15;
321 -2.05692 2.45134 -15; 322 -1.6 2.77128 -15;
323 -1.09446 3.00702 -15; 324 -0.555674 3.15138 -15;
ELEMENT INCIDENCES SHELL
1 1 2 38 37; 2 2 3 39 38; 3 3 4 40 39; 4 4 5 41 40; 5 5 6 42 41;
6 6 7 43 42; 7 7 8 44 43; 8 8 9 45 44; 9 9 10 46 45; 10 10 11 47 46;
11 11 12 48 47; 12 12 13 49 48; 13 13 14 50 49; 14 14 15 51 50;
15 15 16 52 51; 16 16 17 53 52; 17 17 18 54 53; 18 18 19 55 54;
19 19 20 56 55; 20 20 21 57 56; 21 21 22 58 57; 22 22 23 59 58;
23 23 24 60 59; 24 24 25 61 60; 25 25 26 62 61; 26 26 27 63 62;
27 27 28 64 63; 28 28 29 65 64; 29 29 30 66 65; 30 30 31 67 66;
31 31 32 68 67; 32 32 33 69 68; 33 33 34 70 69; 34 34 35 71 70;
35 35 36 72 71; 36 36 1 37 72; 37 37 38 74 73; 38 38 39 75 74;
39 39 40 76 75; 40 40 41 77 76; 41 41 42 78 77; 42 42 43 79 78;
43 43 44 80 79; 44 44 45 81 80; 45 45 46 82 81; 46 46 47 83 82;
47 47 48 84 83; 48 48 49 85 84; 49 49 50 86 85; 50 50 51 87 86;
51 51 52 88 87; 52 52 53 89 88; 53 53 54 90 89; 54 54 55 91 90;
55 55 56 92 91; 56 56 57 93 92; 57 57 58 94 93; 58 58 59 95 94;
59 59 60 96 95; 60 60 61 97 96; 61 61 62 98 97; 62 62 63 99 98;
63 63 64 100 99; 64 64 65 101 100; 65 65 66 102 101; 66 66 67 103 102;
67 67 68 104 103; 68 68 69 105 104; 69 69 70 106 105; 70 70 71 107 106;
71 71 72 108 107; 72 72 37 73 108; 73 73 74 110 109; 74 74 75 111 110;
75 75 76 112 111; 76 76 77 113 112; 77 77 78 114 113; 78 78 79 115 114;
79 79 80 116 115; 80 80 81 117 116; 81 81 82 118 117; 82 82 83 119 118;
83 83 84 120 119; 84 84 85 121 120; 85 85 86 122 121; 86 86 87 123 122;
87 87 88 124 123; 88 88 89 125 124; 89 89 90 126 125; 90 90 91 127 126;
91 91 92 128 127; 92 92 93 129 128; 93 93 94 130 129; 94 94 95 131 130;
95 95 96 132 131; 96 96 97 133 132; 97 97 98 134 133; 98 98 99 135 134;
99 99 100 136 135; 100 100 101 137 136; 101 101 102 138 137;
102 102 103 139 138; 103 103 104 140 139; 104 104 105 141 140;
105 105 106 142 141; 106 106 107 143 142; 107 107 108 144 143;
108 108 73 109 144; 109 109 110 146 145; 110 110 111 147 146;
111 111 112 148 147; 112 112 113 149 148; 113 113 114 150 149;
114 114 115 151 150; 115 115 116 152 151; 116 116 117 153 152;
117 117 118 154 153; 118 118 119 155 154; 119 119 120 156 155;
120 120 121 157 156; 121 121 122 158 157; 122 122 123 159 158;
123 123 124 160 159; 124 124 125 161 160; 125 125 126 162 161;
126 126 127 163 162; 127 127 128 164 163; 128 128 129 165 164;
129 129 130 166 165; 130 130 131 167 166; 131 131 132 168 167;
132 132 133 169 168; 133 133 134 170 169; 134 134 135 171 170;
135 135 136 172 171; 136 136 137 173 172; 137 137 138 174 173;
138 138 139 175 174; 139 139 140 176 175; 140 140 141 177 176;
141 141 142 178 177; 142 142 143 179 178; 143 143 144 180 179;
144 144 109 145 180; 145 145 146 182 181; 146 146 147 183 182;
147 147 148 184 183; 148 148 149 185 184; 149 149 150 186 185;
150 150 151 187 186; 151 151 152 188 187; 152 152 153 189 188;
153 153 154 190 189; 154 154 155 191 190; 155 155 156 192 191;
156 156 157 193 192; 157 157 158 194 193; 158 158 159 195 194;
159 159 160 196 195; 160 160 161 197 196; 161 161 162 198 197;
162 162 163 199 198; 163 163 164 200 199; 164 164 165 201 200;
165 165 166 202 201; 166 166 167 203 202; 167 167 168 204 203;
168 168 169 205 204; 169 169 170 206 205; 170 170 171 207 206;
171 171 172 208 207; 172 172 173 209 208; 173 173 174 210 209;
174 174 175 211 210; 175 175 176 212 211; 176 176 177 213 212;
177 177 178 214 213; 178 178 179 215 214; 179 179 180 216 215;
180 180 145 181 216; 181 181 182 218 217; 182 182 183 219 218;
183 183 184 220 219; 184 184 185 221 220; 185 185 186 222 221;
186 186 187 223 222; 187 187 188 224 223; 188 188 189 225 224;
189 189 190 226 225; 190 190 191 227 226; 191 191 192 228 227;
192 192 193 229 228; 193 193 194 230 229; 194 194 195 231 230;
195 195 196 232 231; 196 196 197 233 232; 197 197 198 234 233;
198 198 199 235 234; 199 199 200 236 235; 200 200 201 237 236;
201 201 202 238 237; 202 202 203 239 238; 203 203 204 240 239;
204 204 205 241 240; 205 205 206 242 241; 206 206 207 243 242;
207 207 208 244 243; 208 208 209 245 244; 209 209 210 246 245;
210 210 211 247 246; 211 211 212 248 247; 212 212 213 249 248;
213 213 214 250 249; 214 214 215 251 250; 215 215 216 252 251;
216 216 181 217 252; 217 1 36 254 253; 218 36 35 255 254;
219 35 34 256 255; 220 34 33 257 256; 221 33 32 258 257;
222 32 31 259 258; 223 31 30 260 259; 224 30 29 261 260;
225 29 28 262 261; 226 28 27 263 262; 227 27 26 264 263;
228 26 25 265 264; 229 25 24 266 265; 230 24 23 267 266;
231 23 22 268 267; 232 22 21 269 268; 233 21 20 270 269;
234 20 19 271 270; 235 19 18 272 271; 236 18 17 273 272;
237 17 16 274 273; 238 16 15 275 274; 239 15 14 276 275;
240 14 13 277 276; 241 13 12 278 277; 242 12 11 279 278;
243 11 10 280 279; 244 10 9 281 280; 245 9 8 282 281; 246 8 7 283 282;
247 7 6 284 283; 248 6 5 285 284; 249 5 4 286 285; 250 4 3 287 286;
251 3 2 288 287; 252 2 1 253 288; 253 253 254 290 289;
254 254 255 291 290; 255 255 256 292 291; 256 256 257 293 292;
257 257 258 294 293; 258 258 259 295 294; 259 259 260 296 295;
260 260 261 297 296; 261 261 262 298 297; 262 262 263 299 298;
263 263 264 300 299; 264 264 265 301 300; 265 265 266 302 301;
266 266 267 303 302; 267 267 268 304 303; 268 268 269 305 304;
269 269 270 306 305; 270 270 271 307 306; 271 271 272 308 307;
272 272 273 309 308; 273 273 274 310 309; 274 274 275 311 310;
275 275 276 312 311; 276 276 277 313 312; 277 277 278 314 313;
278 278 279 315 314; 279 279 280 316 315; 280 280 281 317 316;
281 281 282 318 317; 282 282 283 319 318; 283 283 284 320 319;
284 284 285 321 320; 285 285 286 322 321; 286 286 287 323 322;
287 287 288 324 323; 288 288 253 289 324;
ELEMENT PROPERTY
217 TO 288 THICKNESS 0.02
1 TO 72 THICKNESS 0.018
73 TO 144 THICKNESS 0.016
145 TO 216 THICKNESS 0.014
DEFINE MATERIAL START
ISOTROPIC STEEL
E 2.05e+008
POISSON 0.3
DENSITY 76.8195
ALPHA 1.2e-005
DAMP 0.03
TYPE STEEL
STRENGTH FY 253200 FU 407800 RY 1.5 RT 1.2
END DEFINE MATERIAL
CONSTANTS
MATERIAL STEEL ALL
SUPPORTS
289 TO 324 FIXED
LOAD 1 LOADTYPE Dead TITLE DL
SELFWEIGHT Z -1 LIST ALL
PERFORM ANALYSIS PRINT ALL
FINISH