plugin nut ups mail notification every 5 minutes

Hello,

Sorry for my poor english.

I installed Nut plugin . I plug my eaton ups in usb.

The command 'upsc myups' always works

but i receive every 5 minutes the following email

Communications with the UPS ups@localhost cannot be established

What is the problem and how could i avoid all these email ?

I see some thread about the same probleme but even if i put pollinterval=10 i always receive these emails

thanks for your help