The phone did not download the update correctly; This is most likely due to access rights set up on the PC. If this happens in the future, navigate to C:\Users\XXXXXXXX\AppData\Local\Euphoria\Application\2.0.0.x. where XXXXXXXX is the users’ name that is logged on to that PC. and the 2.0.0.x is the last version that the softphone tried to update to. Simply delete that folder 2.0.0.x and then restart the softphone; it will then re-update and get the correct new version.
If you can't see the AppData folder, then you have to activate view hidden files. You do this by clicking on Organize in the windows explorer once you have navigated to the users’ name. Then click on the "folder and search options", select the "View" tab and tick the radio button that says "Show hidden files, folders, and drives". Now you will see that the AppData folder is now visible in the Users\XXXXX folder.