I am having problems starting up LSPDFR. Whenever I start GTA 5 through Rage Plugin Hook, it loads all the plugins, but when I go to load into the game it freezes and it says "Unhandled exception in plugin "LSPD First Response" (LSPD First Response.dll). Then under the notification it says "System.NullReferenceException: Object reference not set to an instance of an object."

Mine is doing the same thing

I dont get it, it was doing fine then it just started giving me this notification next time I load the game. 

Same here. Was working fine for me, then I took a break. I started it back up and the message keeps coming up. 

Press F4 and Manually load "LSPD First Response.dll"

this worked for me 

When I load it through Rage it literally freezes on the part to where you are up in the air and going down to the player, that's when it gives me the unhandled exception error, cant even load the game.

I found a I guess temporary fix, I took the load plugin of lspdfr out of the startup file and i loaded it manually through the game