This plugin would double our Battlemetrics RCON commands when we added points with the Ark Shop. After reading Sly's comment, I took a chance to remove Unicode plugin, and now all our commands work successfully. To be honest, I don't even know what the plugin did, lol. I think I know what it was supposed to do.
Be careful, this plugin sometimes repeats a single command several times. It gave me many problems with the store, I had it automated loading the points by rcon and once gave a player more than 20,000 when I had to give it only 800. I had to change the store script to load the points for mysql uu
The broadcast messages were repeated many times ... In the end I withdrew this mod and these problems disappeared.