AikoCutie

Remove PoliceLifeS, and callout manager, both outdated. Reinstall Rage native UI
Put RageNativeUI.dll and .xml into your root GTA V folder. https://github.com/alexguirre/RAGENativeUI/releases

remove Alpr Plus and better ems, Reinstall the manual lspdfr. See if that helps

Yeah cause the folder is named LSPDFR1, remove the 1 and make It LSPDFR

Make sure you have the updated RNUI.

Put RageNativeUI.dll and .xml into your root GTA V folder.

https://github.com/alexguirre/RAGENativeUI/releases

if that still doesn't work, send a rage plugin hook log, found inside your main directory and NOT your logs folder

Arrest Manager https://bit.ly/ARRestManager
Assorted Callouts https://bit.ly/ASsortedCallouts
LSPDFR+ https://bit.ly/LspDFRPlus
Computer+https://bit.ly/CoMpUtErPLUS
Traffic Policer https://bit.ly/TrAfficPolicer
Police SmartRadio https://bit.ly/PoliceSmarTR

try and remember what mod you installed recently and uninstall it / revert the meta file, or, I'm afraid you are going to have to restart your mods folder.
Also, if you haven't already, install the required game configs. 
**Modified Gameconfig**
https://bit.ly/3yt6yMy
mods > update > update.rpf > common > data
**Heap Limit Adjuster**
https://bit.ly/3iqYFBM
Place the .asi file into your main GTA V folder.
**Packfile Limit Adjuster**
https://bit.ly/3rXa2Vq
Place the .asi and .ini files into your main GTA V folder.

have you tried installing a completely new vehicle?

Remove SHVDOTNET, try again

update rage native ui
https://github.com/alexguirre/RAGENativeUI/releases
 
Change your plugin time threshold in rage settings 
 
Changing Your Plugin Timeout Threshold In the first tab of the RPH Settings, find the bar titled "Plugin Timeout Threshold" and change it to 60,000.
 
Accessing RagePluginHook Settings
 
To access your RagePluginHook settings, hold Shift straight after launching RagePluginHook. Alternatively, press the little silver cog icon when you see the RagePluginHook splash screen after launching.

if updates do happen to come up such as lspdfr updates or gta updates. Its recommended to backup files so it saves you time from reinstalling stuff. For lspdfr, its recommend to just keep a backup of your lspdfr folder so no key binds or changes you made inside will be lost. For gta, the only thing is that when mods folder needs update, it updates the update.rpf's, so any files in those update.rpf's you have to back them up one by one or else they will get replaced. 

Right, the trunk control mod has to go into the GTAV > Plugins folder, Not plugins > Plugins, So I suggest you remove the second plugins folder as that is useless

If the mods folder is the issue, then only you can know what the problem is if you retrace what you download.

make sure you have scripthookv.dll and dinput8.dll downloaded