Hi.
Could you please upload the actual XML file instead of pasting “code”?, thanks.
Also, if the tool is not working for you, I would try the other methods described here → APIM Sync Settings Not Saving, VER_ERR08 Errors, Cannot Perform Master Reset or Upgrades/Updates (Solved) .
Once you make enough room on the APIM proceed and install the latest 3.4 version (which contains the fix for the issue). If your unit is not MY20 reformat it, otherwise a simple Sync3 upgrade with autoinstall should be enough.