an error occurred - constraint failed

1

emclient working with googlemail has stopped working in the last few days.
The only message I get is “an error occurred - constraint failed”.

Don’t really know where to start?

Not sure if it’s following the last update.
Have done a repair installation but still fails.

2

If this was due to an update of eM Client, you can uninstall the application and then download and install the previous version from the Release History.

Or, as it is a GMail account, you might try removing the account from eM Client, then adding it again.