I stupidly changed one of my files over the last couple of days, and didn't create a back up. I have uninstalled LCPDFR, along with GTA IV, reinstalled both, and this is the error that I am getting. Somebody please help, I really enjoy playing this game.
2016-06-28 14:26:05 - STARTING SCRIPTS...
2016-06-28 14:26:05 - INFO: Phone number checks are not available!
2016-06-28 14:26:05 - ...successfully started script 'Flashlight.Main'!
2016-06-28 14:26:05 - ...successfully started script 'VehicleSearchVS.VehicleSearch'!
2016-06-28 14:26:05 - ...successfully started script 'vdH.TowScript.TowService'!
2016-06-28 14:26:09 - ...successfully started script 'vdH.PHelper'!
2016-06-28 14:26:10 - ...successfully started script 'vdH.MedicalExaminer'!
2016-06-28 14:26:10 - ...successfully started script 'TireTurn.net.TireTurn'!
2016-06-28 14:26:10 - ...successfully started script 'Main.net.RadarGun'!
2016-06-28 14:26:10 - ...successfully started script 'TestScriptVB.RadarScript'!
2016-06-28 14:26:10 - ...successfully started script 'LCPDFR_Loader.PublicScript'!
2016-06-28 14:26:10 - ...successfully started script 'LCPDFR_Loader.Loader'!
2016-06-28 14:26:10 - ...successfully started script 'Braveheart.ANPR_System'!
2016-06-28 14:26:10 - ...successfully started script 'indicatorClass'!
2016-06-28 14:26:10 - ...successfully started script 'Controll.Controll'!
2016-06-28 14:26:11 - Error during Tick in script 'LCPDFR_Loader.Loader':
System.IO.IOException: The process cannot access the file 'C:\Program Files (x86)\Steam\steamapps\common\Grand Theft Auto IV\GTAIV\LCPD First Response.dll' because it is being used by another process.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.FileStream.Init(String path, FileMode mode, FileAccess access, Int32 rights, Boolean useRights, FileShare share, Int32 bufferSize, FileOptions options, SECURITY_ATTRIBUTES secAttrs, String msgPath, Boolean bFromProxy, Boolean useLongPath, Boolean checkHost)
at System.IO.FileStream..ctor(String path, FileMode mode, FileAccess access, FileShare share)
at LCPDFR_Loader.Test.LoadFile(String path)
at LCPDFR_Loader.Test.LoadAssembly()
at LCPDFR_Loader.Loader.Load()
at LCPDFR_Loader.Loader.Loader_Tick(Object sender, EventArgs e)
at GTA.Script.TryTick()
at GTA.Script.DoTick()
at GTA.ScriptThread.OnTick()
2016-06-28 14:26:31 - Direct3D device lost!
2016-06-28 14:26:31 - SCRIPTS TERMINATED!