While creating an new world in resource packs the number of resource pack shows 256

I was creating a new world i was putting my packs when the number resource packs shows 256 instead i have only 7 when I tap on list of resource packs my game crashes.I wrote version 1.19.51 and it was 1.19.30.22 but while creating this report in this website the list shows version doesn't exist. For proof see screenshot.