Fatal error: Uncaught Error: Call to undefined function add_filter() in /home/techconnectlive/public_html/wp-content/plugins/cornerstone/includes/integration/conflict-resolution.php:8 Stack trace: #0 /home/techconnectlive/public_html/wp-content/plugins/cornerstone/includes/integration/conflict-resolution.php(67): Cornerstone_Conflict_Resolution->setup() #1 /home/techconnectlive/public_html/wp-content/plugins/cornerstone/includes/integration/conflict-resolution.php(71): Cornerstone_Conflict_Resolution::run() #2 {main} thrown in /home/techconnectlive/public_html/wp-content/plugins/cornerstone/includes/integration/conflict-resolution.php on line 8