H5P Videos not Working after Update and Student Dashwidgets not coming

First let me start with a positive statement: I have been using this theme for past 4 years (Well almost). I am very happy with it. 1. Widgets are not appearing on Student Dashboard. When tried at appearance->Widgets in main menu, it throws many errors. 2. H5P Videos are not visible in the courses. Earlier They were visible properly. My Units are generally Text with shortcodes h5p Videos. I tried some examples and Edited the page using elementor with adding short code again in proper way. The video appears in prview. But when same page is opened by student, the video does not appear. 3. When Student logs in, it takes long time to reach dashboard and after lots scrambled screens comes in between. Inspect Element -> Console shows these errors​ WARNING: cdn.mathjax.org has been retired. Check https://www.mathjax.org/cdn-shutting-down/ for migration tips. replaceScript @ cdn.mathjax.org/math…MS-MML_HTMLorMML:32 dash.all.min.js?ver=1.6.3.1:1 Uncaught SyntaxError: Unexpected token ’<’ www.theskillpedia.com/:1 Failed to load resource: the server responded with a status of 500 () DevTools failed to load source map: Could not load content for https://www.theskillpedia.com/wp-content/plugins/vibebp/assets/js/firebase-app.js.map: HTTP error: status code 500, net::ERR_HTTP_RESPONSE_CODE_FAILURE www.theskillpedia.com/:1 Failed to load resource: the server responded with a status of 500 () www.theskillpedia.com/:1556 GET https://www.theskillpedia.com/wp-content/plugins/vibebp/assets/js/tus.min.js?ver=1.6.3 net::ERR_ABORTED 500 editor.js?ver=1.6.3:46 loaded divider DevTools failed to load source map: Could not load content for https://www.theskillpedia.com/wp-content/plugins/vibebp/assets/js/firebase-database.js.map: HTTP error: status code 500, net::ERR_HTTP_RESPONSE_CODE_FAILURE DevTools failed to load source map: Could not load content for https://www.theskillpedia.com/wp-content/plugins/vibebp/assets/js/firebase-messaging.js.map: HTTP error: status code 500, net::ERR_HTTP_RESPONSE_CODE_FAILURE DevTools failed to load source map: Could not load content for https://www.theskillpedia.com/wp-content/plugins/wplms_plugin/assets/css/tabulator.min.css.map: HTTP error: status code 500, net::ERR_HTTP_RESPONSE_CODE_FAILURE DevTools failed to load source map: Could not load content for https://www.theskillpedia.com/wp-content/plugins/vibebp/assets/js/firebase-auth.js.map: HTTP error: status code 500, net::ERR_HTTP_RESPONSE_CODE_FAILURE login.js?ver=1.6.3:1 POST https://www.theskillpedia.com/wp-json/vbp/v1/loggedinmenu 500 (anonymous) @ login.js?ver=1.6.3:1 b @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 (anonymous) @ redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2 (anonymous) @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 (anonymous) @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 (anonymous) @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 setTimeout (async) (anonymous) @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 s @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 (anonymous) @ login.js?ver=1.6.3:1 Promise.then (async) (anonymous) @ login.js?ver=1.6.3:1 Bh @ react-dom.min.js?ver=16.13.1:126 Dj @ react-dom.min.js?ver=16.13.1:162 unstable_runWithPriority @ react.min.js?ver=16.13.1:25 Da @ react-dom.min.js?ver=16.13.1:60 xb @ react-dom.min.js?ver=16.13.1:162 Te @ react-dom.min.js?ver=16.13.1:146 Ja @ react-dom.min.js?ver=16.13.1:224 md @ react-dom.min.js?ver=16.13.1:173 (anonymous) @ react-dom.min.js?ver=16.13.1:175 Rh @ react-dom.min.js?ver=16.13.1:147 nd @ react-dom.min.js?ver=16.13.1:175 I.render @ react-dom.min.js?ver=16.13.1:238 (anonymous) @ profile.js?ver=1.6.3:1 login.js?ver=1.6.3:1 POST https://www.theskillpedia.com/wp-json/vibebp/v1/token/validate-token/?client_id=qA5aVHL3sscgU53l&force 500 VERIFY_USER_API @ login.js?ver=1.6.3:1 (anonymous) @ redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2 (anonymous) @ redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2 r @ redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2 (anonymous) @ redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2 c @ redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2 t @ redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2 (anonymous) @ redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2 (anonymous) @ redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2 (anonymous) @ redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2 (anonymous) @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 (anonymous) @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 (anonymous) @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 (anonymous) @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 setTimeout (async) (anonymous) @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 s @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 (anonymous) @ login.js?ver=1.6.3:1 Promise.then (async) (anonymous) @ login.js?ver=1.6.3:1 Bh @ react-dom.min.js?ver=16.13.1:126 Dj @ react-dom.min.js?ver=16.13.1:162 unstable_runWithPriority @ react.min.js?ver=16.13.1:25 Da @ react-dom.min.js?ver=16.13.1:60 xb @ react-dom.min.js?ver=16.13.1:162 Te @ react-dom.min.js?ver=16.13.1:146 Ja @ react-dom.min.js?ver=16.13.1:224 md @ react-dom.min.js?ver=16.13.1:173 (anonymous) @ react-dom.min.js?ver=16.13.1:175 Rh @ react-dom.min.js?ver=16.13.1:147 nd @ react-dom.min.js?ver=16.13.1:175 I.render @ react-dom.min.js?ver=16.13.1:238 (anonymous) @ profile.js?ver=1.6.3:1 VM1228:1 Uncaught (in promise) SyntaxError: Unexpected token < in JSON at position 0 Promise.then (async) (anonymous) @ login.js?ver=1.6.3:1 b @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 (anonymous) @ redux-routine.min.js?ver=fd5f93d1f8206c65d1891cf1f898211e:2 (anonymous) @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 (anonymous) @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 (anonymous) @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 setTimeout (async) (anonymous) @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 s @ data.min.js?ver=a9e98fe3ad76884fe7909ba8348395b7:2 (anonymous) @ login.js?ver=1.6.3:1 Promise.then (async) (anonymous) @ login.js?ver=1.6.3:1 Bh @ react-dom.min.js?ver=16.13.1:126 Dj @ react-dom.min.js?ver=16.13.1:162 unstable_runWithPriority @ react.min.js?ver=16.13.1:25 Da @ react-dom.min.js?ver=16.13.1:60 xb @ react-dom.min.js?ver=16.13.1:162 Te @ react-dom.min.js?ver=16.13.1:146 Ja @ react-dom.min.js?ver=16.13.1:224 md @ react-dom.min.js?ver=16.13.1:173 (anonymous) @ react-dom.min.js?ver=16.13.1:175 Rh @ react-dom.min.js?ver=16.13.1:147 nd @ react-dom.min.js?ver=16.13.1:175 I.render @ react-dom.min.js?ver=16.13.1:238 (anonymous) @ profile.js?ver=1.6.3:1 VM1229:1 Uncaught (in promise) SyntaxError: Unexpected token < in JSON at position 0 4. Website has gone very slow.