Maps are not shown

Hi, I haves a problem with the Google Maps Easy (I do have the API Code) and Ultimate Maps by Supsystic (API not required) plugins. After updating WP I can not see the the map on the site anymore, there is just an empty space: https://goldenhill.co.za/anreise/ WP 5.5.1 Catch Katmandu Pro: 3.1 Both plugins are working on other sites with another theme. Additional info, maybe helpful: I had the same problem with Foo Galleries and it was solved when I checked the following option in the Foo settings: Custom Ready Event: By default the jQuery ready event is used, but there are sometimes unavoidable javascript errors on the page, which could result in the default gallery templates not initializing correctly. Enable this setting to use a built-in custom ready event to overcome this if needed. Thank you for your help in advance!