My game was restarted

[cat20070101]

I was on survival endless flag 20 and the next day I suddenly had to restart my game, losing all my progress. Was that a bug or what because I played this game for years and now I have to restart my game. 

[JMDGamotia1993]

@cat20070101 It will also do the same by surviving many flags throughout "Survival: Endless" mode by emptying the lawn mowers and/or pool cleaners.