Error accessing BDS Document. Error code &1

What causes this issue?

Error occurred while accessing the BDS document 'RSDME_CLEXCEL' .
Error code description:
2, 3, 4 - System Error
5, 6 - Authorization Error

System Response

The system issues an error message and will not allow you to continue with this transaction until the error is resolved.

How to fix this error?

Procedure for System Administrators

Error message extract from SAP system. Copyright SAP SE.