List of IDoc types in HTML format created in directory '&', file '&'

What causes this issue?

The list of IDoc types was created.

System Response

HTML file '&v2&' was saved in directory '&v1&' on the presentation
server.

How to fix this error?

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

Error message extract from SAP system. Copyright SAP SE.