load-scripts.php: 500 (internal server error)

I’m using Thrive Architect plugin for editing pages, But I get errors from the server: In the console: load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,hoverIntent,utils,common,admin-bar,underscore,shortcode,backbone,wp-util,wp-backbone,media-models,mox&load[]=iejs,plupload,wp-plupload,jquery-ui-core,jquery-ui-widget,jquery-ui-mouse,jquery-ui-sortable&ver=4.9.8:4 GET…