Subscribers count won't update

I’ve created a command for the sub count. !addcom !subs we currently have (subscribers) subscribers!. but when i use it it says “we currently have 0 subscribers!” dispite the fact i have over 50 subscribers. i tried keeping the command for few weeks for the bot to register new subs just incase it didn’t recognise the old subs, but it still says i have subscribes.
any help would be greatly appreciate it. thanks in advance