I recently just downloaded lspdfr because it looked interesting and fun. I got maybe 4 hours of play. Experienced multiple crashes. And now it says my game or ragehook needs a update and it no longer supports my game? Any advice to fix it? 

GTA V Received an update about 2 days back. That's why you have unsupported game version. Nothing you can do about it but wait until Rage Plugin Hook gets updated which usually takes a few days.

Second thing. I'm not sure what you mean by multiple crashes but if you mean LSPDFR crashing as a plugin, the most common reason for that is using outdated LSPDFR plugins (e.g. callout packs) or sometimes their improper configuration. First thing I'd try in that case is checking if your plugins comply with LSPDFR Version 0.4.9. and remove any that does not. The info about LSPDFR version that a plugin supports is stated on its download page.
For the future, remember to attach ragepluginhook.log file from your main game's folder to your post if you need help with this kind of issue. It gives a better insight on what's happening and don't worry, it won't contain any volatile info.

Thank you. I checked and I have the most recent lspdfr that I was able to find on the site. I’m super new to alll of this so I’m completely clueless. I thought about reverting the game but it also doesn’t give me that option either. Just says not supported. Forgive me for not knowing anything. 

Jk I’m a idiot there was a new update 🤦🏼‍♂️