I tried getting the morgan on a server im running with friends and well, i couldnt due to an unknown mod which leaves a tamed wolf in this state and just says in chat *your pet wolf is dying! [coordinates].. i cant finish him off neither can i pick him back up, its just stuck in this state, what can i disable/do ?

save your pets is the issue, its a known issue and has not been fixed to this day
has also been reported quite a few times
just remove that mod, i doubt that you want to save a pet in a big modpack like this in which pets are usually not useful :D

thanks for the tip! good to know, yeah not sure why you would need this mod ;/ it wasnt in the pack a few versions ago when i was getting my morgan on singleplayer so i was a bit confused...