[Park Crashes when opened to guests]

Here is said park if anyone can lmk what is going on.

Foresty one.sv6

[Park Crashes when opened to guests]

I just recently finished a park and it works totally fine when it's closed, but once I open the park and guests start coming in, after about thirty seconds it crashes. I have tried it about 10 times and it consistently crashes exactly the same time every time. Anyone know whats going on?