A stored procedure executed by the application took too long and caused a transaction time-out. Application Uri: '%1' Cause: ...

A stored procedure executed by the application took too long and caused a transaction time-out.

Application Uri: '%1'

Cause: Possible backend or connectivity issues. This can also happen if the Server is overloaded.
Resolution:
Check whether the Server and the backend are functioning correctly and resolve any connectivity or overload issues.