Cannot fetch/pull from remote repository

As of this morning, I can no longer fetch/pull from my repositories and am receiving the following:

error: cannot spawn filelocation\SourceTree\app-3.0.6\tools\Askpass.exe: No such file or directory
bash: /dev/tty: No such device or address
error: failed to execute prompt script (exit code 1)
fatal: could not read Password for 'accounturl': No error

This is via basic authentication.