Did you happen to note on that screenshot you provided the GOOGLE ERROR??/ NO API KEYS? What is that referring to
What is the url where you are seeing that error ?
If you cannot add a location or the tabs in the admin screen in back end is not working properly, are you using smush it or another minifier plugin? If so there is a conflict. First try turning off deactivating the other plugins one by one.
your versions of SLP plugin and add-ons are outdated. We are on 5.3 or higher for all. If you are using WP 5.3, you can update Premier to 5.3 or higher as well
If you are trying to get to the bottom of the errors, use the WP debugger and provide us the debug log (make sure it is current clear any old messages) there could be a conflict with your them or other plugin.
Another good info page about javascript errors
That screenshot is showing a warning of NOAPI key from Google as well. I cant tell what is going on without a url page where you have the SLP loaded