Dragon Quest Builders [BLJM61311]

hi, i have a problem with the save to, the game works well, i finish the 1ª chapter in cantlin, then i start the 2ª everything works well for 5 hours, i can save and all works, but the last time i save a pop up appears with this error:


after that, the emulator close.

then i open another time, and when i´m going to load the save, nothing appears, there is no save anymore, i can start the 2ª chapter but i cant save anymore, every time i press x for save nothing happens, if i press another time on the flag for save, ther is no save, so i can´t save.

i download the last build of rpcs3 and copy the save game folder with no luck, if i delete de system folder everithing is deleted, anyone knows any solution? i don´t want to start from the very beggining, i spend a lot of hours, thanks!

i´m gonna answer myself, i fix the save game opening de save data with and hexadecimal editor, and changing the name of the corrupt file for whatever name, and finally works.
But it´s constantly happening the same error, but i can play finally