Fatal error: Uncaught Error: Class "OMAPI_Shortcode" not found in /htdocs/wp-content/plugins/optinmonster/optin-monster-wp-api.php:330
Stack trace:
#0 /htdocs/wp-content/plugins/optinmonster/optin-monster-wp-api.php(266): OMAPI->load_global()
#1 /htdocs/wp-includes/class-wp-hook.php(324): OMAPI->init('')
#2 /htdocs/wp-includes/class-wp-hook.php(348): WP_Hook->apply_filters(NULL, Array)
#3 /htdocs/wp-includes/plugin.php(517): WP_Hook->do_action(Array)
#4 /htdocs/wp-settings.php(704): do_action('init')
#5 /htdocs/wp-config.php(106): require_once('/htdocs/wp-sett...')
#6 /htdocs/wp-load.php(50): require_once('/htdocs/wp-conf...')
#7 /htdocs/wp-blog-header.php(13): require_once('/htdocs/wp-load...')
#8 /htdocs/index.php(17): require('/htdocs/wp-blog...')
#9 {main}
thrown in /htdocs/wp-content/plugins/optinmonster/optin-monster-wp-api.php on line 330