Yep the above is correct. I read the entire thread.
This is caused by a conflict with a Plugin. Uninstall ALL plugins and place them in a temporary folder. This goes for your Plugin Folder and your LSPDFR folder. Make sure that you ONLY have LSPDFR installed and running. Now run the game. See if you can play for 30 minutes straight without crashes. if you have not had a crash you have your answer. Now install one at a time. I would make sure you have a fresh copy of each of those plugins as well.
One other question and forgive me if it was answered, thought I read everything here. Is your CPU, or GPU overheating at all? Can you tell me a core temp, should be in Bios. There is another program that you can see core temps live as well. I had some crashing issues awhile back and it was caused by my CPU overheating, so it would just crash the game. When I finally did some investigation looking at my logs for my PC, found the temp getting hotter than 60 Celsius. Got a new CPU cooler and all is good.
See if my first part helps. Really I did not suggest it first, that came from above. I am just reconfirming that I think and or agree with his help for you.