Hopefully this could help others who're experiencing the crash issue: Ver 1.11 is out and MrAntifun's trainer ver 1.10 is compatible just so you know
First, go to settings turn fullscreen OFF
change the game's resolution to 75%
click on any "Hand icons a.k.a the items"
turn on the trainer
click F1 then you should hear a sound prompt
click any item you wish to duplicate in the SEARCHED tab, keep clicking until desired amount is met
go to the Trainer, click F1 to turn it off then close it
go to desktop then refresh 3 times
then back to the game and click EXIT
rinse and repeat
this step WORKS for me hopefully it will work for you