1.Uninstall and delete all the deluge and gtk remnants including Roaming folder ones.
2.Do a fresh install and if needed replace all the config files but DO NOT replace gtkui or ui and if it's there neither do gtkui.conf~ ( i believe it get's created after 1st use not sure).
3. run Deluge and everything is back to normal !
![Very Happy :D](./images/smilies/icon_e_biggrin.gif)
This was an old solution but wouldn't hurt to give it a try.