Help with lucky block

I've been using a tutorial and working a lucky block mod, but around the 10th possibility, the code starts to not execute properly, lines of code in 1 possibility could occur in others, or starts to execute multiple possibilities, when it should only do 1. Does anyone have a fix for this? I've tried making this mod a couple times before, but usually I had to scrap it due to this issue.

The code is just a long if-elseif-elseif chain, which checks a variable set to an integer

https://imgur.com/a/DeRQAo6 (link image wasnt working for some reason)

Thank you