Major input missing. Please check

Hello . I have this error and don’t know how to solve it

HB 5 update.gh (841.6 KB)

This is running without any errors on my system. Please go through it once.

This might be caused by lack of some information in .epw file. Change your .epw then run your simulation again.

i think i have problem with loading all the epw files in my grasshopper. i don’t have any idea how to solve this problem?