How to fix the Oracle error ORA-15506: cannot prepare instance string for replay?

In this post, you’ll learn more about the Oracle ErrorORA-15506: cannot prepare instance string for replay with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-15506: cannot prepare instance string for replay

Reason for the Error ORA-15506: cannot prepare instance string for replay

Given instance encountered unexpected errors while trying to prepare for a workload replay.

How to fix the Error ORA-15506: cannot prepare instance string for replay ?

You can fix this error in Oracle by following the below steps

Check the alert log and other diagnostics in the given instance to diagnose the problem.