lushchak

A file GTAV/lspdfr/chars/.dat failed to decrypt! Please delete that file and get a fresh copy from the LSPDFR manual install.

Try delete Automatic Siren Cutout [Plugin has been discontinued and may not work as intended.]

And, a string (piece of text) was in the wrong format. You may've incorrectly edited a .ini / .xml file & these changes should be undone. 
 
But first try to remove this outdated mod (Automatic Siren Cutout).

You are experiencing a System Access Violation and this could be caused by a faulty mods folder. Please rename your mods folder to _mods & retry. If this diagnostic step works, something in your mods folder is preventing LSPDFR from loading correctly. Please revert the recent changes you made.
 
OR
 
1. Do you have the latest version of GTA V?
2. Do you have the time set to 60000 in the RagePluginHook settings?
3. If you use mods (any, especially cars), do you have any recommended files? (Script Hook V and gameconfig (latest version, both mods are updated every time GTA V is updated), PackFile Limit Adjuster, HeapAdjuster)
4. Try to update RageNativeUI (it is available on github)
5. If the previous points did not help - delete all additional callouts, perhaps one of them is outdated.

1. Do you have the latest version of GTA V?
2. Do you have the time set to 60000 in the RagePluginHook settings?
3. If you use mods (any, especially cars), do you have any recommended files? (Script Hook V and gameconfig (latest version, both mods are updated every time GTA V is updated), PackFile Limit Adjuster, HeapAdjuster)
4. Try to update RageNativeUI (it is available on github)

If any of these are incorrect, update / download these files. Also, if this does not help, try to remove all additional callouts (if you installed them), maybe one of them is not supported. And if even that doesn't help - rename your mods folder to "_mods" and see if LSPDFR starts without mods.

Solution: go to the GTA 5 folder and make sure that compatibility is not enabled in the files: GTA 5.exe, GTAVLanguageSelect.exe, GTAVLauncher.exe