Learpress jQuery Migrate Helper — Critical Errors

Example error.
Why? WordPress deprecated fnctionality used in the LP javascript.
Why? Jquery Migrate Helper was Thimpress recommended solution to mulitiple failures introduced by the incompatibility of learnpress/eduma with wordpress 5.5

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jQuery Migrate Helper — Warnings encountered
This page generated the following warnings:

jQuery is not compatible with Quirks Mode
https://propertarianinstitute.com/wp-content/plugins/learnpress-students-list/assets/js/scripts.js: ‘ready’ event is deprecated
Please make sure you are using the latest version of all of your plugins, and your theme. If you are, you may want to ask the developers of the code mentioned in the warnings for an update.