LIVE SYNC with Google contacts

Objective: LIVE SYNC with Google or outlook contacts with a VOIP system
Discussions:
I use about 5 desktops and 3 moblie devices that I am trying to sync contacts on my voip system.
Currently use line2.com for my VOIP calls and it is synced to Google Contacts
could ealiy switch to ms outlook contcts sync if it is working better

Problem: Recently Google is disabling my live sync with line2.com . for last 2 months
--the google error code is Disabling Googler contactsd due to error:
Execution of request failed:
https:.google.com/m8/feeds/groups/defualt/full?group=http:%2Fwww.google.com%2Fm8%2Ffeeds%2Fgroups%eFcoughlinb%2540gmail.com%2Fbase%2F6
Debugging done so far:
Have deleted my 5,000 contacts and cleaned the CVS database to minal data fields
Minimized teh content of each data field
Middle name and Company are usually 30 characters
Uploaded 50 contacts and it seems to work
Upload a 1,000 contacts and it eroors the above again.

Solution:
Google Sync Expert to help me solve my contact sync error See attached error messages

I would consider swtiching to ms Teams if they finally have Live sync to outlook contacts working.
Would consider exchange server
Would consider interfacing with my own MYSQL database

I see MS teams is FINALLY offering call outs. Doubt if they are yet live synced with MS People( outlook contacts) would be happier syncing with Google contacts.

Solution: if you are a Google Sync ?Outlook Sync Expert and have solved some of these sync problems I WILL HIRE YOU!