For the people using the PowerMag theme. This is the fix:
I know but the latest version (3.0) causes this problem. You have 2 possible solutions:
1. Revert back to the previous version till next update is released
2. Open functions.php:
in line 387 replace:
wp_deregister_style( 'socialcountplus-style' );
with:
wp_deregister_style( 'social-count-plus' );
It should fix it.
Credits: Powermag Ticket System by Djwd