Tutorial How to use custom zombie maps manually without steam?

[Floppa9112]

how to fix this?

 

[Angry bull]

I get the same error, and I will provide you with a screen shot.
View attachment 1404
It worked with verrukt though,
View attachment 1405
and I don't know why.

Did you find the solution ? I'm having the same issue

 

[CabCon]

Did you find the solution ? I'm having the same issue

how to fix this?View attachment 4822

Maybe this does help:

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