Not working plugins AviRockets (Unturned)

Rented server to SRV install plugins AViRocket, and they don't work, don't know what to do, I expect a question like - do you have installed?, I will answer immediately - YES!
I was the third time the server has already figured out what and how support SRV writes that it is a problem with the plugin and Avi are not responsible, and the rent is burning