UMD is recognized but it won't read (Kinda)

Hey,

From a long time ago I’ve been wanting to play some GTA Chinatown and other on my PSP E1004 (I think this PSP and the E1000 are almost the same). So I put the UMD in the slot and I can hear the motor spinning and it shows on the screen but after 5/10 seconds I can hear it stopping but the loading icon is still there. I tried cleaning the lens and some dirt but I still get the same problem and trying other games. Maybe I should say I fell a long time ago but I remember that the PSP red it.

Looking forward to repairing my PSP,

Sam