Calculation of weld design

[Ravii]

Hi, 
I converted this Mathcad sheet from xmcd to mcdx. But now I've this error it is not calculating. 

The file is attached. Please help me if know to fix this error.

[MartinHanak]

Hi,

please read https://community.ptc.com/t5/Mathcad/How-to-use-Find-Function/td-p/721059 discussion.