So, I put folder with addon to "addon" folder. On server I can open warn menu and warn someone, but warn don't save. I check folder names (all is lowercase) and code and everything seems to be fine. Can someone help?
Are you able to get into the menu at all?
What if you just type !warn in chat or awarn_menu in your console?
if nothing still happens, then you installed it wrong. Sometimes a conflicting addon will stop the chat command, but if you try the console command and it just says unrecognized command, then it's not properly installed.