You may have missed it, but this is the email we sent out to all version 7 users early last year:
Dear user,
As of June 15th, 2021, Google will phase out the Google Contacts API and replace it with the People API, which is not supported by older versions of eM Client.
Since you’re still using an older version of eM Client which doesn’t support the new People API, you need to upgrade to eM Client’s version 8.2 in order to keep synchronizing your Google Contacts.
If you do not wish to upgrade, but you need your Google Contacts, you can work around this situation by copying the contacts to Local Folders and switch off the Google Contacts service.
Also, the Translator API v.2 featured in older versions of eM Client is no longer supported after May 24th, 2021. If you wish to use the instant translation of emails feature further, you need to upgrade your eM Client as well.
What that means now is you need to upgrade to version 9, or disable syncing your Google Contacts.
To disable the contacts, first copy the contacts to Local Folders, then go to Menu > Accounts and click on the General tab for this account. Scroll down to Services and untick Google Contacts.