'treeLocalHistory.compareToCurrentEntry' failed..

[ghost]

haya awesome addon but i've found it only works with the "select file to compare" feature and upon doing "compare with current version" it outputs this:

Error running command treeLocalHistory.compareToCurrentEntry: Running the contributed command: 'treeLocalHistory.compareToCurrentEntry' failed.. This is likely caused by the extension that contributes treeLocalHistory.compareToCurrentEntry.

the only extension i have installed is a c# addon for c# support - any ideas?

thankyou :)

(Here's the extension)