Installation - permission not set!

13.09.2016 132
Assigned to: Live Chat Option: Support Status: Closed Solution: Yes From: hosting

I am trying to install Live chat but it is showing in the initial install page 

permission not set (check guide)! (JAK_CACHE_DIRECTORY), permission not set! (JAK_FILES_DIRECTORY

I already added all necesary permission (full), but it is still throwing this error.  Please advice

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