[Google Calendar]Failed to sync folder ‘[email protected]/Tasks’ with error: Sequence contains no elements
You need to download the eM Client 8.2 / 9.0 fix update. See eM Client support thread link below.
Note: Backup eM Client first via “Menu / Backup”. The close EMC & install the update.
“FIXED! Google Calendar error - Sequence contains no elements”
https://forum.emclient.com/t/fixed-google-calendar-error-sequence-contains-no-elements/80926