Moved appointment cause sync error

[DavidPyke]

Checklist:-

• [X] Upgrade to the latest release (alpha if available)
• [X] Reproduce the issue
• [x] Complete the information below
• [x] Provide your OGcalsync.log file (see how-to) https://gist.github.com/DavidPyke/bd28abc1fdff8ea032370268a8ecd126

OGCS Version: v2.11.0.0 Edition: Installed Sync Direction: O<->G

Bug Description
I moved an appointment in Outlook. Now OGCS wants to remove the notification for it in Google Cal (15 min -> removed) but since the appointment has been moved and no longer exists, it's failing

Steps to Reproduce the Issue

1. Go to Sync...
2. Click on. Sync

Any other information
Any additional information that may help troubleshoot the issue.
:paperclip: Attach your OGcalsync.log file. OGcalsync.log

[DavidPyke]

The error in the interface