Need some help on my custom ai

[jade monolith]

So I'm making a parkour horror game, and I wanted to add an ai capable of going as fast as the player and to punch him with pathfinding, etc..
But right now I'm kinda lost..
This is my first time making an ai with pathfinding and everything and idk if somebody could help me, because it's pretty damn hard ._.

So here's the killer AI module script (located in a folder named "AI" inside of servercriptservice), aswell as the pathfinding module (which is the child of the killer AI module script)

[modern elm]

What do you actually need help with? Is something inside those scripts not functioning how you wanted it to?

[jade monolith]

yeah, for some reason, when the ai spot a player he starts running but not moving, or just barely moving, and when he finally gets to the player, he just get send into the void and dies. And I have no fucking idea why ._.