For some of the Exor forms when trying to access the through Locator an “Invalid module” error message appears.
If your system is configured correctly this most often means that the form is not designed to run through Fastpath or can only be accessed from within another form. You can look it up in Modules form. If the particular form has FastPath Invalid checked there it should not be launched from FastPath.
For more details on particular form please refer to the corresponding user guide.