This could be due to multiple possible issues. It could be an outdated plugin which is causing things to crash. Do make sure you have the most up to date versions of all the plugins you have installed. I use this to check to ensure i have the latest versions of plugins http://www.lcpdfr.com/files/file/12675-lspdfr-update-checker-update-checker-mod-manager-log-cleaner-and-more/. Another reason which could be causing game crashes is if you have modded any vehicles. Another thing to check would be to make sure you have installed any modded vehicles to the correct locations and also ensure you have copied all of the required files. If you have changed any .meta files you may wish to review these as a simple typo in these files can very well cause a crash. Hopefully this is of some assistance to you. If not please head over the Darkmyres Discord server and post in the Help and support channel where there is multiple people who could assist.
- Sgt Anderson