If your inheritance tree is right and "Trial Mod" inherits from "user", "Mod" inherits from "Trial Mod", "Senior Mod" inherits from "Mod" and so on, then you should only need to do "!%Mod" for "Trial Mod", "!%Senior Mod" for "Mod" and "!%admin" for "Senior Mod" and that should work alone.
However, I believe ULX/ULib groups don't like capital letters at all, so changing them to all lowercase might help. It could also be better if you didn't have a space and instead removed it completely or changed it to an underscore.