Dashboard fail + bad running te 510

Hi, i have 2010 te 510 with small problem. Few days ago i noticed that i have fail on my dashboard after putting key in and turning electric on. Bike don't need to be running to get fail. Bike start's pretty good as cold and as warm but it's not running perfectly when driving. When i gas its like explosion in exhaust, atleast it sounds like that. When pressing death switch the fail goes away, but when i press it agen, i hear sound from fuel pump starting and after that there agen fail on the dashboard

I tryed to buy new battery if it would have helped, but it did not help. So any clue's where i sould look next.

Thanks!