Routine & (Table & could not be read)

What causes this issue?

It was not possible to read the table due to an 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?

The log might give further details about the error.
Using the analysis tool of the database utility, check the consistency
of the table.

Error message extract from SAP system. Copyright SAP SE.