mosquitto-sub dont exec

[domoZAM]

Hi, I installed motioneye on ubuntu server 24.04 and configured all cams, i had configured a nfs partition to save streams at motion triggered and i would like to exec a mosquitto command to notify the event. it seems work all except the mosquitto command: if i exec the command manually it works but not inside motioneye field.
Any suggestion how solve this trouble will be wellcome.
Thanks in advance for any contribution..
domo