[CoursePress Pro] Courspress Unit editor not loading

I've migrated to a new hosting provider and now cannot edit my courses. The module editor windows has a spinning wheel saying "Loading modules…". The following error is showing in the console:


Uncaught TypeError: this.$ is not a function

at success (coursepress-unitsbuilder.js?ver=2.2.0:1459)

at Object.t.success (load-scripts.php?c=0&load[]=hoverIntent,common,admin-bar,heartbeat,autosave,suggest,wp-ajax-response,jquery-color,wp-lists,jquery-ui-core,jquery-ui-widget,j&load[]=query-ui-mouse,jquery-ui-sortable,postbox,jquery-ui-position,jquery-ui-menu,wp-a11y,jquery-ui-autocomplete,tags-suggest,tags-box&load[]=,underscore,word-count,post,svg-painter,wp-auth-check,shortcode,backbone,wp-util,wp-backbone,media-models,wp-plupload,mediaeleme&load[]=nt,wp-mediaelement,media-views,media-editor,media-audiovideo,mce-view,imgareaselect,image-edit,jquery-ui-slider&ver=4.7.13:345)

at i (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,plupload&ver=4.7.13:2)

at Object.fireWith [as resolveWith] (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,plupload&ver=4.7.13:2)

at y (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,plupload&ver=4.7.13:4)

at XMLHttpRequest.c (load-scripts.php?c=0&load[]=jquery-core,jquery-migrate,utils,plupload&ver=4.7.13:4)