MakerWorld Customize option is not working

Hello ,

when i want to print a name keychain with customize option , custumization does not starts properly , it does not shows anything, does not make changes. it was working properly, but not today. What happened ?
i have tried to open firefox and chrome browser but both does do same thing.

it keep staying like this. And Blow links what i have tried to customize. but also i have tried other customizable files too, all do same problem.

Any any idea what happened or broken files ?
please give help me to fix it.

thanks

I have the same problem now. Did you manage to fix this?