When updating to the most recent version of the plugin, from time to time (and with certain configurations), a conflict can arise between a previous and a new version of Evercontact. Uninstalling and reinstalling doesn't fix the issue as the conflict is within the Registry & "remnants" of Evercontact conflicting with the new installation.
With the help of very resourceful clients & our engineers, we've found a solution to this rare issue:
1. Remove / delete Evercontact from Outlook by downloading and setting up the Evercontact Cleaner, with administrative rights, here:
2. After the cleaning process, do an updated install with the latest Addin version here: