I have a survey hosted on the Portal for ArcGIS version 10.5 , I was uploading data without problems, but now I get the following error:
Survey123 This survey was not able to be sent due to the following error:
Unable to check permission on resource hosted
This appears to be a problem with the feature service on the data store. Are you able to load the survey data in the Map Viewer of your Portal's web page? Does adding new features work from there?
If James is right..
The feature services is not working in the portal, I uploaded a copy of the survey and it's already working correctly.
I could not find the error in the portal for ArcGIS, which caused the fail of the feature services.