I have been working on a power app that connect to a few SharePoint lists. A few days ago, I was updating a new version and the strangest thing happened. First, I was not able to upload zip packages anymore. I was able to upload the new version using the ms app format. Then SharePoint connections stopped working. I have access to my SP site, were the lists are. But every time I try to connect the SP lists from the selected site I get the message in the image below.

Not sure what is wrong. I could not find this message anywhere else on the Internet.
Any help is more than welcome!