i cant find a solution to this problem i try to talk to lin and it says i need to "buy and give android the human kit supplies" but i have already bought and given it to her and when i check the other tab i can see the human kit but its sold out because i got it before i reached this point with lin my android is friendship 31 btw if that helps
That's the issue, never cheat friendship unless you know exactly what you're doing.
For example, if you add a friendship point and that event was an anal sex scene, you never got an anal point. Which leads to you never being able to have anal sex with that character. And you should ALWAYS save before you cheat.
Don't forget about your auto saves.