ERROR 500 After installing bootstrap3 theme plugin

Hi, please help again , i tried to install bootstrap theme plugin in my ojs page the result is the image below. please help. i followed this tutorial GitHub - NateWr/bootstrap3: A community-built theme for OJS 3 that implements Bootstrap 3 components. . my ojs version is . thanks

if its cant be fix please tell me how to restore.

Hi @Ahmad_Fawwaz,

A 500 error usually indicates that a more detailed error was logged in your web server’s error log. You can check there for details and then research how to solve the problem.

Amanda Stevens
Public Knowledge Project Team