Receiving “ NON-COMMERCIAL USE ONLY” alert for personal unattended use

Receiving “ NON-COMMERCIAL USE ONLY” alert for personal unattended use

I receive the alert
“ This was a free session sponsored by assist.zoho.com
Please note that free sessions are available for NON-COMMERCIAL USE ONLY.
Thank you for playing fair!”
and then I am disconnected from my server. 

I am using Zoho for personal use and I actually switched off of TeamViewer due to their consistent flagging of my use as commercial. I do have my system behind a VPN that rotates on and off for security reasons. This may be the reason but I am only connecting to one computer from my iPad and iPhone only.