Crash upon Blacking/Whiteing out

I was doing a randomizer nuzlocke and was in telnor cave, I was there at the start of the game before you personally meet the second augur for the first time, I lost to a wild Delta Gardevoir which was level 9, my starter was in place of the delta Squirtle, which was randomized to a Celebi. (I'm putting the extra things in, just in case it influences anything to do with the crash)