Go to your Trezarcoin folder then Data folder, save a copy of your XXXX.dat file to your desktop (this should be the backup of your wallet)
Then re-install the Trezarcoin wallet application, and replace the new XXXX.dat file with the one you backed up.
Re-launch the application this should work.

Before performing the above steps, can someone please confirm this will work?
Let's help this brotha out