ERROR 80110326 when trying to load a savedata

[Pashoa]

Hello Everyone!
I have this problem when I try to load a savedata from my PSP to the emulator. The savedata is from the game Patapon 3 and I can´t find any solution to this. I read in a github thread that the reason could be because it's a savedata encrypted with an old method and to solve this I should change the option 'SavedataUpgradeVersion = False' of the ppsspp.ini to 'True', but my file already had the True option. Please, I really want to rescue this savedata from my dead PSP but I don´t know how.
Thanks in advance to everyone.