Blank Screen after apply custom theme OJS 2.4.8.1

I try custom theme OJS 2.X classicBlue with adding alot of css code, but after saving css file and apply on Setup > The Look: choosing theme then save. The screen become blank, Iam searching log error cannot find clue why. Iam frustated, anyone can help me? my custom theme available here.

Hi @andrewdion04

Check, please, your php error in your webserver , also clear your OJS cache folder.

Regards,
Israel Cefrin
Public Knowledge Project Team

OJS cache folder done
Check PHP error, no error

Hi @andrewdion04

Could you enable on your config.inc.php file show_stacktrace parameter to On and check what messages it shows to you?
I think you should also check webserver error log (i.e. /var/log/apache2/error.log)

Regards,
Israel Cefrin
Public Knowledge Project Team