The server returned an HTTP error with code 0

Trying to connect from SharePoint list to PowerApps.

The errror is;

The server returned an HTTP error with code 0

StackLength: 1529
Stack: AppMagic.Services.ServiceError: <MESSAGE REMOVED>
   at Anonymous function (https://cdn-paaprodweu.azureedge.net/v3.18111.15.95585990/studio/js/AppMagic.Runtime.Client.js?v=3.18111.15.95585990:1:181248)
   at q (https://cdn-paaprodweu.azureedge.net/v3.18111.15.95585990/studio/openSource/modified/winjs/js/base.js?v=3.18111.15.95585990:2:38050)
   at O.enter (https://cdn-paaprodweu.azureedge.net/v3.18111.15.95585990/studio/openSource/modified/winjs/js/base.js?v=3.18111.15.95585990:2:41562)
   at _run (https://cdn-paaprodweu.azureedge.net/v3.18111.15.95585990/studio/openSource/modified/winjs/js/base.js?v=3.18111.15.95585990:2:42880)
   at _chainedError (https://cdn-paaprodweu.azureedge.net/v3.18111.15.95585990/studio/openSource/modified/winjs/js/base.js?v=3.18111.15.95585990:2:42239)
   at c (https://cdn-paaprodweu.azureedge.net/v3.18111.15.95585990/studio/openSource/modified/winjs/js/base.js?v=3.18111.15.95585990:2:40072)
   at then (https://cdn-paaprodweu.azureedge.net/v3.18111.15.95585990/studio/openSource/modified/winjs/js/base.js?v=3.18111.15.95585990:2:43693)
   at I.enter (https://cdn-paaprodweu.azureedge.net/v3.18111.15.95585990/studio/openSource/modified/winjs/js/base.js?v=3.18111.15.95585990:2:40141)
   at _run (https://cdn-paaprodweu.azureedge.net/v3.18111.15.95585990/studio/openSource/modified/winjs/js/base.js?v=3.18111.15.95585990:2:42880)
   at _setCompleteValue (https://cdn-paaprodweu.azureedge.net/v3.18111.15.95585990/studio/openSource/modified/winjs/js/base.js?v=3.18111.15.95585990:2:42581)

Sessie-id: 7b719a00-9a36-4696-805a-7e0b5973dac1