Sorry but I have the same problem and it is not related to a changed password. That also provides the same problem but my client hasn’t changed his password in a while and still after about a week I have to redo the permission of google or I get the message of “Token has been expired or revoked.”
Can you please help with this, I have seen multiple people with the same issue
I also have the same issue on my client’s website.
Every week I have to do grant permission with google.
Is there any news?