No messages exist

What causes this issue?

You wanted to display the error log for an executed split or a split
simulation, but no messages were created. If you have not executed a
split, simulated or otherwise, this is not an error situation. If this
is not the case, you may be dealing with an internal error.

How to fix this error?

For the first scenario, run a simulation. If errors occur, the error
log is automatically displayed. You can view the last messages again at
any time. Of course, you may also execute the split with no simulation.
However, if errors occur and the error log is not available, create a
problem message.

Error message extract from SAP system. Copyright SAP SE.