(ios iphone4)can't play after upgrading to the 23th march 0.98 upgrade

[fyw02294]

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I always keep upgrading my ppsspp
but today when i got up and upgrade my ppsspp,i started it and load a game(G generation overworld).
I got nothing but a black screen but it wasn't crash,i can still press buttons but no reaction.Then i load my game save(the one saved by ppsspp not real game save),it worked but when i moved my gundam to attack,i selected the option 'attack' then nothing happen and back to the option of 'attack' and 'confirm'.Then i load the real game,it went to black screen again(can press button also).

The game run smoothly and without problem before the upgrade so i wonder if it is caused by the upgrade.I just look for fix or the deb older version(may be the upgrade on 1Xth
march or v0.97 or something)
Can anyone help?T^T