Hello. Is there a reason why I don’t see any errors/warning on F6 console anymore? The script basically just crashed and I don’t see any reason why that could happened in F6 console 
Maybe it didn’t crash but just was done executing the code? Try putting an undefined variable somewhere and see if it throw an error
I have strange problems with the server since 2 days. Yesterday I got random errors with CreateCamWithParams and RequestModel. Parts of code which worked without any warning 3 days ago now sometimes caused random errors. I tried remaking some stuff, but now I just don’t see any errors and for example all spawned vehicles/props and peds disappear even though they are set as mission entities so they should only be removed when I say so in the script.
EDIT:
Now I tried to open ESX Menu which worked perfectly but this time it doesn’t open and crash the script. No warnings, no errors.
I tried putting undefined variables. Still no errors…
Does the script even run? 
Yes, it runs good and smoothly, despite these random errors. It’s not a small script, it’s actually whole gamemode. 3 days ago everything was perfect, yesterday at least I have seen the errors and today I see nothing.
Should’nt that throw an error GiveWeaponToPed(PlayerPedId(), ThisVariableDoesntExist, 5, true, true)?
no, it shouldn’t.
Okay, so the errors appear correctly. I guess then this is something else forcing peds and vehicle to despawn.