Calendar is messed up after latest update

[Android Central Question]

I just updated my phone on 6/3/2019 and now my calendar is messed up. The only thing that shows up are the saved notes I have on certain dates. Everything else is blank. How can I fix this? The calendar can't be disabled or uninstalled and reinstalled as it's the one that is the on the phone when you get it. I have a galaxy 8s+

 

[methodman89]

Were you set to back it up? If so, there you go. If not, your ool.