Game save file on the memory card but game won't read

I bought a oringal PlayStation 1 a couple days ago with it I also bought final fantasy Origins I started playing it before I had to leave for work I saved it twice but when I came back to pick it up again the game said there is no final fantasy data saved on the memory card? So I took the disc out and went to the PS1 main Manu With the only two options "memory card" and CD player I picked memory card and the game file is on there there were two other saves on there since I did buy it pre owed I deleted them thinking maybe they corrupted my save. When I stated the game up again it still gave me no game data found on memory card.

Do I have to buy a new memory card? Or

Is there something wrong with my Ps1?