Varden7

Whenever I try to join a server, I get this message. I'm using A3Launcher, but it doesn't seem to be working with the normal one either I already tried verifying the workshops, fixing them using the normal launcher and verifying the game. Is there any way to solve this issue? Thanks CONTACT THE SERVER ADMIN. You were kicked off the game. (Files C:\Program Files (x86 )\Steam\steamapps\ workshop\content\107410\450814997\addons\cba_accessory.pbo are not signed by a key accepted by this server. To play on this server, remove listed files or install additional accepted keys.)

But the mod is required by the server I'm trying to connect to