PowerApp forms stuck in loading

All the PowerApp forms on my SharePoint site suddenly stopped loading. This happens when i try to view, edit or add a list item in any of the lists with forms.

I can see and interact with the forms from the web editor, and they are working fine in preview mode.

I tried republishing every form, which fixed it for half an hour, before going back to being stuck in loading.

Please share if you have any ideas for a solution.

Stuck in loading