Bug/Issue Issue with the "Rat Problem" quest when doing the Joja way.

In this playthrough I decided to go the Joja Route with the whole community center. I bought the membership before getting the cutscene with Lewis where he goes with the player in the community center and mentions the Junimo Hut. So when I finally got this cutscene the community center was already a warehouse and I can't complete the quest called "Rat Problem" where I have to investigate the Junimos. Please tell me if there's a fix for this.

This is a link to my save file: http://www.mediafire.com/file/50h7by9u4jybg7h/Mirabella_149275648.rar

 

You can just open up the quest in the quest menu, and click the 'Cancel Quest' graphic at the bottom. That quest isn't necessary if you're going the Joja route.
Or are you trying to reverse your decision?