I upgraded SharePoint 2010 to SharePoint 2013 to SharePoint 2016. I have three environments for SharePoint 2016: DEV, QA and PROD. I moved the service application db's and one content db to DEV, added service application db's, mounted content db's and no issues loading subsites. Same behavior in QA. Clicking on subsites in prod environment generates:
Sorry, something went wrong Internal server error exception: Technical Details
PROD Environment: 1 App Server, 1 Web Server, 1 SQL Server, claims based authentication
How do I resolve this error?