Webmail link give me a nice error 500

[Skud]

PRATIALLY SOLVED

Unfortunately I was unable to solve the problem (I tried them all), but I applied a different solution that made ​​me avoid going crazy. I installed rounducube in / var/www/ispcp/gui/tools/webmail2 and applied the permissions to access the database ispCP.

Then I replaced the old folder with webmail roundcube webmail applying two webmail as the default handler.

I realize that this is an approximate solution, but I hope to give straight to people like me who could not solve the problem.

Contact me for more details and thank you anyway for your attention.

See you soon!