Error 500 after installing OJS 3

I have an error, after installing OJS 3, it seems that everything was installed well, I see the installation screen satisfactory, but when I log in I get this error:

This page does not work
The page www.ueb.edu.ec can not process this request now.
HTTP ERROR 50

I need help, I’m installing on Centos 7

Hi @alejo1986,

Check your PHP error log for details.

Regards,
Alec Smecher
Public Knowledge Project Team