Synchronisation error

I am getting a syncronisation error but I don’t understand why or what to do about it. There is a reply in FAQ about a year ago which suggests somebody else had the problem and cited the solution, but does not show what the original problem was .

This topic has been discussed ad nauseam on this forum.

Please see the recent official eM Client announcement at https://forum.emclient.com/emclient/topics/google-oauth-and-quota-exceeded-for-quota-metric-issue

I am not a geek or particularly technically minded, but your reply and the attached article does not tell me what to do about it. You say it is fixed - but do I just ignore the message?
Another respondant says they had multiple duplications of contacts recently - apparently after the fix.

The announcement from eM Client basically says that there was an issue, it was fixed in co-operation with Google, now it has reappeared.

Has there been a solution? I am still getting the error.