inventory rollback/server rollback

[OutlawUSA76]

The game crashed whilst rendering entity in world
Error: java.lang.IllegalArgumentException: ItemStack must be for default leaves.
Exit Code: -1

Your Name: OutlawUSA
Coordinates:  my home 
Time/Date (Post a time/date when everything was fine) (day/month/year): 6/1/21  4:30Pm EST
Description of Issue: was helping a player with inventory problem and got the stuff he had  now its in my inventory and hotbar  need to delete all on me / crashing each time I log in
Screenshots (Optional): up above 

 

[OutlawUSA76]

still need a hand here crashing out