[Openbullet] How to keycheck the countoccurences function?

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hello so maybe its even possible without the function but i tried it with function because i didnt know how to do it without it

in the source code if the same string is multiple times i want a keycheck fail how can i do that?

i did the countoccurence function and have now in my source code this here

 

 with outcome 4

 

Parsed variable | Name:  | Value: 4

 

when i put in keycheck fail

SOURCE CONTAINS with outcome 4 i get a ban instead of a fail