UnknownBastion

I believe this may have to do with an EUP config. Rename mods to _mods and then try loading LSPDFR and see if you get a crash again.

You need to update RageNativeUI by installing the dll and xml files into the Main Directory.
 
Additionally, to solve the mods folder issue you were having originally, name the _mods back to mods and do the following:
1. Install the Gameconfig, Heap Adjuster, and Packfile Adjuster.
2. If that does not work, remove what you have added recently and test after each removal.
3. If you still cannot find the problem, you will have to restart the mods folder.

The solution to that problem can be found in the IPT FAQ.

Go into the lspdfr.ini and change the following to reflect below:
AmbientSpawn.MaxCopsInArea = 0
AmbientSpawn.MaxSpawnedCopsInArea = 0

Try ensuring that any Steam Bootstrappers are closed in the Task Manager background programs.
 

Your topic has been moved to GTA V Support, this is not LSPDFR related.
Please post in the correct location in the future.

According to the log, the issue is ScriptHookV.NET. Try using this version of it. If that one does not work, you simply cannot use ScriptHookV.NET or anything that requires it.

Couple of things:
1. You are missing the NAudio folder/file for MoreRadioChatter. As this plugin has been known to cause issues, I suggest completely removing it.
2. Go into the lspdfr.ini and change the following to reflect below:
Main.DisableGameBlipHiding = true
3. Update your CompuLite.
 

Your topic has been moved to LSPDFR 0.4 Support.
Please post in the correct location in the future.

If you have ScriptHookV.NET installed, try using this version.
 
If the above doesn't work or you dont have ScriptHookV.NET, send the asiloader.log and ELS.log.

If you have ScriptHookV.NET installed, try this version.
 
If that version still does not work/or you do not have ScriptHookV.NET, please send the asiloader.log and ELS.log.

You should have just needed the nightly version. Retry just the nightly version and test again. If still same issue, I will look at the logs you posted above.

Couple of things:
1. AmbientAICallouts, AmbientEmergencyResponse, Bait Car, Bank Callouts, Emergency Vehicle Theft Callouts, Jurisdictions+, Police Backup, SaferChasesRPH, and Stop Aiming At Cops are considered unstable and may cause issues. It is suggested to remove them for the optimal experience, though not recommended.
2. You are also missing the xml file for HWY Callouts. Re-install it.
3. The main cause of the crash you received is a faulty Custom Regions file. You can either revert the changes made to that file or completely re-install it from the Ultimate Backup download.
 

Your topic has been moved to LSPDFR 0.4 Support.
Please post in the correct location in the future.

These were added with the newest update and are indeed base game vehicles. It was added in the Bottom Dollar Bounties update.

You need to open the vehicles.meta where the addon vehicle entry is and then add the the following vehicle flags to the flags section of that addon vehicle entry:
FLAG_HAS_LIVERY FLAG_LAW_ENFORCEMENT FLAG_DONT_SPAWN_IN_CARGEN FLAG_IS_OFFROAD_VEHICLE FLAG_HAS_INTERIOR_EXTRAS FLAG_REPORT_CRIME_IF_STANDING_ON FLAG_IS_BULKY FLAG_EXTRAS_STRONG

There was an issue with PoliceSmartRadio. Re-install it from here.

You need to update RageNativeUI by placing the dll and xml into the Main Directory.

With default LSPDFR, that is done in the agency.xml in the lspdfr/data pathway.
 
In order for it to use EUP, you will need EUP Law and Order, EUP Serve and Rescue (Optional), and an EUP Configs. Since you did not mention Ultimate Backup, I linked the basic configs that are for base LSPDFR. However, others are available to configure EUP for Ultimate Backup.
 
All of the above have a readme included that will guide you on how to install them.

The crash itself is caused by OfficerPorciPlugin. Seeing as that is unstable/outdated, you should remove it. I know they made an updated one called RadioRealismFR, but I don't know how stable that one is either.

Go into mods > update > update.rpf > common > data and open the visualsettings.dat folder via OpenIV.
 
Then change the following entries to reflect below:
car.defaultlight.day.emissive.on    1700.00
car.defaultlight.night.emissive.on 1100.00
 
Test again and see if any further issues.
 

Your topic has been moved to GTA V Support, this is not LSPDFR related.
Please post in the correct location in the future.

Huh. I know it recently got an update as of July 14th. Have you tried re-installing it?

This is an issue with ScriptHookV.NET. You can try using the updated one found here. If that does not work, you simply cannot use ScriptHookV.NET or anything that requires it.

Go into your lspdfr.ini and change the following to reflect below for better FPS:
 

The pressing F4 issue is from ScriptHookV.NET. You can try using this version. However, if that does not work, you simply cannot use ScriptHookV.NET.
 
Additionally, go into the lspdfr.ini and change the following to reflect below:
AmbientSpawn.MaxCopsInArea = 0
AmbientSpawn.MaxSpawnedCopsInArea = 0

English only please. The other option it may be is BetterEMS. Though I am definitely certain it is one of the plugins by PNWParksFan.

Then yeah, like I said above, you can remove the meta entries for the last vehicle you installed and see if that is the problem.

Update RageNativeUI by dragging the dll and xml into the Main Directory.