The release of 11.25.0-RELEASE_42399 and 11.25.0-CURRENT_42399 introduced a configuration issue that may cause Apache configuration syntax errors on servers with no accounts when the mod_userdir tweak is enabled. The condition will present itself upon addition of the first account to the server. This issue is quickly addressed by rebuilding the Apache configuration file.

Symptoms:
The following error can be seen in the cpanel error_log and when attempting to restart Apache:

UserDir "enable" keyword requires a list of usernames

Newly created websites would be sent to defaultwebpage.cgi instead of the appropriate document root.

Resolutions:

1. New builds, 11.25.0-CURRENT_42400 and 11.25.0-RELEASE_42400, have been published to address the issue. This issue will not be present on subsequent new installations. Upgrading a currently affected system will resolve this issue.
2. Rebuilding the Apache configuration after the addition of the first account will permanently resolve this issue.

From the command line:
/scripts/rebuildhttpdconf
/scripts/restartsrv_httpd
or

/scripts/autorepair userdir_enable_fix
/scripts/restartsrv_httpd

From the WHM:
Service Configuration -> Apache Configuration -> Global Configuration ->
Save -> Rebuild Configuration and Restart Apache

Note:
The Apache configuration may be rebuilt as a result of other changes made in the WHM. Your new installation may not experience this issue as a result the the Apache configuration being rebuilt automatically.