Reloading URL prefixes

What causes this issue?

The current URL prefixes should be determined again.

System Response

The message server calls the URL /sap/public/icf_info/urlprefix within
the Web Application Server. The SAP Web AS provides a list of defined
URL prefixes. The message server uses this list to decide whether the
request is forwarded to a Web AS with a
J2EE Engine or an ABAP Engine.

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.