After i used the escape option in battle (wanted to go faster, wasn't a particularly hard fight) i encontered a bug that made the game crash. I didn't had time to printscreen the error shown but was something like "visible object not found".
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I was in the first cave after saving Raphael from the bandits.
*spoiler*
It was very sad because i lost a bunch of progress due to the last time i manually saved. I thought the game had autosaves.