Moodle 3.0.3+ Error 500

Hello, I have a problem with Moodle 3.0.3+

Hosted on your own server ISPConfig3

Installation was okay. The problem is with tabs administration of Moodle. On most of my server throws an error 500

I've tried to set permissions 775. Even in the error log can not see anything.

Do you have any advice?

Apache / 2 April 10 (Debian)

PHP 5.6.19-0 + deb8u1

Mysql Ver 15.01 Distrib 10.0.23-MariaDB

 

I am still not able to install it on my server. Did anyone installation Moodle on ISPconfig?

 

I, too, was a mistake 500, but after waiting moodle eventually established installed.