When creating a custom command line for Aberration, unlike some other maps for Ark, you must make sure that you include the Map ID too!
So Simply select Aberration from the map drop down list, and below that you will see MapModID make sure this is set to 708770 and ticked for the map to work, if you have done it wrong, it will show the map as Shooter entry.
Looking for a game server host known for brilliant 24/7 customer support and quality hardware?
Try a Pingperfect Ark Survival Evolved server today! https://pingperfect.com/gameservers/ark-survival-evolved-server-hosting.php