Try these commands:
Reset to zero: !addcom !resetdeath -ul=moderator -a=!editcom !deaths $(channel) has died 0 times.
View current deaths: !addcom !deaths $(channel) has died 0 times
Set deaths to an amount: !addcom !adddeath -ul=moderator -a=!editcom !deaths $(channel) has died $(1) times.
(Note idk how to do the thing to make commands their own text box so bear with me)