Have to press reset everytime for a new compression else an error screws up the app

[sriksm19]

First off, thanks for the app
Problem:
Cant drag new files onto the window when a set of optimized files are already present. If done, then the app throws an error. Have to reset all the time before adding new files. (lazy me :P)

What should happen:
Drag and drop should automagically reset and compress.

Error:

[ghosh]

@sriksm19 Yup, that's something I plan on fixing sometime soon. Thanks for reporting it.