Half my base rolled back to what it was 2 weeks ago

[TheDeviI]

I have logged in today 02/04/20, i went over to my temple which i have been building for over 56 hours, i was then greeted with half of it missing and half of it as it was, this has deeply disturbed me. my in game name is TheDeviI. it looks like the chunks were rolled back by two weeks. please help.

the coords are x -2345    z -6096