Your SavedVariables file seems to have grown too big, or maybe soemthign crahed in between and destroyesd the file.
If it says this the file cannot be written anymore and thus got corrupt, or if some other circumstances destroyed your SV file.
Logout, backup the file and then rename it.
Login and setup the addon new, and try to reduce the amount of scanned data as your current settings seem to scan too much and thus the file get's too big! (if you are able to setup this somewhere in ATT settings, like via a date to scan backwards etc.).
btw:
1st point to contact and ask for support SHOULD always be the addon's comments section itsself:
https://www.esoui.com/downloads/info....html#comments
The author more likely will read it there and is able to help!