Rocket Legue Issues

Just wondering if anyone happens to have any ideas. I've played this game quite a lot with no issues and all of a sudden my monitor would go black, then the game would come back up and then go black again before I could even continue playing. It would also bring up a yellow triangle with an exclamation mark in the icons near the clock. Turns out new drivers for my graphics card had been released and they solved that issue. A few days later I started getting a couple more issues. I sometimes get an issue where it can't connect properly, it tells me how many players are online but can't bring up the game mode selection and I have to relaunch the game. That one's bearable but annoying. The other and more major issue I am having is similar to the first issue, except my monitor is coming up with a message 'No HDMI detected.' I can get it to come back on but then it just ends up doing it again, pretty much rendering the game almost unplayable. So far I haven't had any issues with any other game. Nothing on my system has changed, any help would be greatly appreciated.

TL;DR: My monitor keeps going black with a message saying no hdmi mid match during Rocket League, no issues with other games.