FIFA games are notoriously difficult to preserve legally. The licenses for kits, stadiums, and player likenesses expire. EA literally cannot re-release older FIFA games on modern stores because their legal right to the data has evaporated. This means FIFA 19 on PS3 is a time capsule with a self-destruct timer.
A is a proprietary license format used by Sony to authenticate content purchased from the PlayStation Store. Even if you have the game files (the .PKG file), the PS3 will not run FIFA 19 without its corresponding RAP file, as it lacks the "handshake" needed for authorization. Key Specifications for FIFA 19 (PS3) fifa 19 ps3 rap file