Fatal Error: Need help please

So I have recently edited every ytd files that were giving off a zlib error.
I have tested all of the cars and peds now, all seem fine.
I have added a few cars with meta and handling files…
After this I booted up and got this error…

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So I went back into my resource files and removed 1 car with handling and no more error, it will boot and work error free, but adding 1 more is too much or?..
I only have 5 or 6 cars with meta files, why am I getting this error???

Thanks