Hi Hüseyin,
As there has no issue with our theme, that’s why we didn’t have any scope to try those possible solutions.
So, please let us know your WordPress version, the theme version that you are using, the plugin list and the hosting server PHP version to understand why the issue raised.
Moreover, you could provide your wp-admin access using our Envato Market (themeforest) profile contact form https://themeforest.net/user/themelooks#contact (screenshot as reference http://prntscr.com/gkmr2r ) including this support topic link as a reference to review the issue to fix.
Best Regards,
ThemeLooks Support Team