LSPDFR was working just fine, I added a speed radar (since deleted), and an addon vehicle (I've used it before, no issues.) My GTA V main directory is exempt from antivirus. I use default Windows 10 antivirus. Not sure what the issue could be. Read a few threads that didn't solve it (removing dinput8.dll, reinstalling, etc).
I have attached my RPH crash log below in a .txt file.