Permissions Issue

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Hi

ispconfig: 3.0.5.1
webserver: apache
linux: debian sqeeze

I have recently upgraded to 3.0.5.1 and it seems I have a permissions problem. I have previously made a folder var/www/clients/client0/web1/file/ with sub-folders to hide them from normal web access. After upgrade it seems the script cannot access the folder any more

Cache Directory "/var/www/clients/client0/web1/file/cache" not writeable

I have checked permissions of folder

drwxr-xr-x 15 web1 client0 4096 Mar 2 10:57 file

It looks like the script should still be able to access the folder but everything has stopped working.