I finally managed to get the game working.
The issue was actually just some files that needed updating. I just had to update my gameconfig.xml file, reinstall my heap adjuster and pack limit adjuster files and the game worked just fine.
For those who have the same game crashing problem, here are the files I downloaded to fix it:
- Gameconfig.xml: https://www.gta5-mods.com/misc/gta-5-gameconfig-300-cars
- Heap Limit Adjuster: https://www.gta5-mods.com/tools/heapadjuster
- Package Limit File Adjuster: https://www.gta5-mods.com/tools/packfile-limit-adjuster
Thank you to every people who helped me. I don't know how to say it but it really means a lot to me