Another menu item with the same parent h

i AM TRYING TO INSTALL ANOTHER COMPONENT AND IT FAILS.

Error:

Another menu item with the same parent has this alias
Error building Admin Menus

here is the compenent

GMapFP Installation

Welcome on v9.17 GMapFP !
Before starting, I invite you, if this isn't already made, to discovery all the possibilities of this component and thisd plugin on its Official Site.
You will be able there to download the update and consult the forum.

Good continuation with GMapFP

check in your /module folder if there is some folder named like that, if yes DO NOT JUST DELETE it. Maybe you component iz installed and you just need to add instance, in Module Manager "New" option