Fatal error: Uncaught Error: Class 'WP_Rocket\Optimization\Abstract_Optimization' not found in /home/xbeta/public_html/wp-rocket/inc/classes/optimization/CSS/class-combine-google-fonts.php:14
Stack trace:
#0 {main}
  thrown in /home/xbeta/public_html/wp-rocket/inc/classes/optimization/CSS/class-combine-google-fonts.php on line 14