Everything seems to work fine except the name of the group (in my case: Founder) is not appearing. If someone could help, that would be great... Thanks
-LM

Unfortunately PermissionsEx is currently unmaintained and no further updates are planned. Because of this, all issues are being closed. If you are looking for an actively maintained permissions plugin, take a look at LuckPerms. It is compatible with major server platforms and can import data from PEX.