software"evolution" doesn't connect after changing the passwords
 

I'm using linuxmint cinnamon 19.1
I've changed my passwords in 2 gmail accounts. The accounts are registered in evolution. Now it cannot connect. In the apps of smartphone and tablet the connection is without problem.

Well, did you change the password(s) in evolution?
What exactly does it say, what error message? Show us in full, no paraphrasing please.

problem with evolution
 

Error-message: - Verbindung zur Aufgabenliste "ingo2:My Tasks" fehlgeschlagen.
Zugriffs-Token konnte nicht erneuert werden. Bitte melden Sie sich erneut am Server an.

I have 2 accounts in evolution. Both have a new password. The calender of one account ist showing actuell dates on the right side. I don't find where to connect with the new passwords in evolution.

Perhaps, goa-daemon --replace would help as described in the GNOME bug #751524?

ArchWiki lists links you have to follow in order to configure Evolution for use with Gmail, Google calendar and Google contacts. Among them, Gmail Help suggest removing the Gmail account from Evolution and re-adding it back.