PvPmanager and Essentials both using the pm command.
After a pm reload the pm command is no longer assigned to PvPmanager, it felt back to Essentials so it is no longer usable.

Build 144

you can use /pvpmanager

I know that. It is a minor issue though.

There is also /pvpm
I will see what i can do though.

I think no-one will complain if you remove the pm alias. Pvpm should work as well.

I'm going to fix it anyway, i also like to use /pm reload while debugging and have noticed this issue quite some times, it's annoying.