Egyptian Steel Code (ECP205 - 2001)

Hello All, 

I am using STAAD pro to model and design steel structure building using ECP205-2001

my structure consists of Cross I beam columns 900mm depth , tw=20mm , flange width = 40cm , tf = 38mm

also, I have built this section through a free sketch in the Section Wizard

but unfortunately I've got this error message popping :   

" Member M1

Error found while designing member 1.
Error 15 : Present version supports member thickness having less than or equal to 40 mm."  

I dont have any thickness more than 40mm as I mentioned above , what can I do !? 

also does STAAD supports design of steel members defined through section wizard !?

Thanks for help in advance !