I was playing normally yesterday and suddenly got removed to title screen and had to reinstall content packs 1, 2, and 3. After doing this, I was able to play until a short while after the same thing happened again. This time, I uninstalled everything and re-download it. Upon opening the game after the download was completed, I was given the same original message of missing content packs.
Is this a known issue? Couldn't find much on this. Any help is appreciated
So my situation was resolved by deactivating my ps4 under device management in PlayStation.com, then reactivating the console from the console itself.
For some reason my PS4 activation status was screwed up - on the console I couldn’t activate it or deactivate it, hence the PlayStation.com fix above.