BQ aquaris e4 problem

[joosbarends]

Hello, people. I'm experiencing a problem in my android BQ Aquaris E4. The longpress home suddenly changed to google search instead of recent apps, and the recent apps passed to the options button, which made me have no longer access to the options... Is there a way to reverse this? Or do i have to go to the store where i bought it? Im getting desperate here x.x