Fatal error: Uncaught Error: Class "MC4WP_Custom_Integration" not found in /htdocs/inlac-institute.com/wp-content/plugins/mailchimp-for-wp/includes/integrations/class-integration-fixture.php:67
Stack trace:
#0 /htdocs/inlac-institute.com/wp-content/plugins/mailchimp-for-wp/includes/integrations/class-integration-fixture.php(82): MC4WP_Integration_Fixture->load()
#1 /htdocs/inlac-institute.com/wp-content/plugins/mailchimp-for-wp/includes/integrations/class-integration-manager.php(118): MC4WP_Integration_Fixture->__call('is_installed', Array)
#2 [internal function]: MC4WP_Integration_Manager->is_installed(Object(MC4WP_Integration_Fixture))
#3 /htdocs/inlac-institute.com/wp-content/plugins/mailchimp-for-wp/includes/integrations/class-integration-manager.php(138): array_filter(Array, Array)
#4 /htdocs/inlac-institute.com/wp-content/plugins/mailchimp-for-wp/includes/integrations/class-integration-manager.php(44): MC4WP_Integration_Manager->get_enabled_integrations()
#5 /htdocs/inlac-institute.com/wp-includes/class-wp-hook.php(324): MC4WP_Integration_Manager->initialize('')
#6 /htdocs/inlac-institute.com/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#7 /htdocs/inlac-institute.com/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#8 /htdocs/inlac-institute.com/wp-settings.php(673): do_action('after_setup_the...')
#9 /htdocs/inlac-institute.com/wp-config.php(98): require_once('/htdocs/inlac-i...')
#10 /htdocs/inlac-institute.com/wp-load.php(50): require_once('/htdocs/inlac-i...')
#11 /htdocs/inlac-institute.com/wp-blog-header.php(13): require_once('/htdocs/inlac-i...')
#12 /htdocs/inlac-institute.com/index.php(17): require('/htdocs/inlac-i...')
#13 {main}
thrown in /htdocs/inlac-institute.com/wp-content/plugins/mailchimp-for-wp/includes/integrations/class-integration-fixture.php on line 67