cannot edit h5p image hotspots anymore

Detailed steps to reproduce the bug (exactly how and when did it happen)

editing hotpot content impossible since last update. Loading sign infinite showing
Platform and version number. E.g. Drupal, Wordpress, Moodle.

Wordpress 4.9.9 -
Mobile or Desktop

Desktop
Browser: Chrome, Firefox, Safari etc

Firefox
H5P plugin version

h5p 1.12.0
H5P content type and version (if a content type was used), and a sample URL or attached H5P.

hotspot
Any browser console errors

JQMIGRATE: Migrate is installed, version 1.4.1 load-scripts.php:9:542

Laden fehlgeschlagen für das <script> mit der Quelle "https://the.greedy.moneymonarchy.international/wp-content/uploads/h5p/li...". admin.php:1 Error while loading scripts:error { target: script

, isTrusted: true, eventPhase: 0, bubbles: false, cancelable: false, defaultPrevented: false, composed: false, timeStamp: 3270, cancelBubble: false, originalTarget: script

, … } h5peditor.js:111:13 Laden fehlgeschlagen für das <script> mit der Quelle "https://the.greedy.moneymonarchy.international/wp-content/uploads/h5p/li...". admin.php:1 Error while loading scripts:error​bubbles: false​cancelBubble: false​cancelable: false​composed: false​currentTarget: null​defaultPrevented: false​eventPhase: 0​explicitOriginalTarget: <script type="text/javascript" charset="UTF-8" src="/wp-content/uploads/h5p/libraries/H5PEditor.ColorSelector-1.2/scripts/spectrum.js?ver=1.2.3">​isTrusted: true​originalTarget: <script type="text/javascript" charset="UTF-8" src="/wp-content/uploads/h5p/libraries/H5PEditor.ColorSelector-1.2/scripts/spectrum.js?ver=1.2.3">target: <script type="text/javascript" charset="UTF-8" src="/wp-content/uploads/h5p/libraries/H5PEditor.ColorSelector-1.2/scripts/spectrum.js?ver=1.2.3">

​​timeStamp: 3280

​type: "error"​<prototype>: EventPrototype { composedPath: composedPath(), stopPropagation: stopPropagation(), stopImmediatePropagation: stopImmediatePropagation(), … } h5peditor.js:111:13ns.libraryRequested/</script.onerror https://the.greedy.moneymonarchy.international/wp-content/plugins/h5p/h5p-editor-php-library/scripts/h5peditor.js:111:13Laden fehlgeschlagen für das <script> mit der Quelle "https://the.greedy.moneymonarchy.international/wp-content/uploads/h5p/li...". admin.php:1 Error while loading scripts:error { target: script

, isTrusted: true, eventPhase: 0, bubbles: false, cancelable: false, defaultPrevented: false, composed: false, timeStamp: 4345, cancelBubble: false, originalTarget: script

, … } h5peditor.js:111:13  

Any PHP errors
Screenshots if it's a visual problem

The h5p content is also not embeded in post. Just one empty line is shown
Any recent changes to the environment (new plugins/modules, updates, configuration changes etc.)

h5p plugin updated to 1.12.0
Any recent changes to the browser you're using (new extensions, updates etc.)

no change to browser