I can’t play ufc 4 after downloading it from ps+ store.

I got UFC 4 a couple weeks back during the PS+ sale when it was free. I regularly played it a couple times a week and I was having no problems with it. For some reason, one day when I logged into my account to play UFC4, it appeared to have been uninstalled. When I tried to reinstall it, it said I had to pay even though I had already previously downloaded it. Since then, I still haven’t been able to redownload it for free and I don’t know what the problem is. It won’t even show in my purchased game feed anymore. I do still have ps+ so the problem isn’t that my subscription ended. I don’t know if this is a bug or something else. If anyone knows how to solve this, your help would be appreciated.