By reset do you mean deleted the ftblauncher folder in the AppData or ~/Library/ folder? Please post a console log with the error you are getting now to pastebin.com and link to it here. To do this press the 'Paste my log to pastebin.com' button. This will add a link at the bottom of the console. This is where your log was copied. Post that here so we can see your log and try to fix the problem.