Sauskeshippuden

I'm playing on ps4 single player crystal isles and I can't pick up creatures with my argy like anky, doed, or dilo and the superior kibble have been taming creatures at 1 percent per feed. I haven't used the other kibbles yet so I don't know how effective they are. Also crystal wyverns aren't spawning or they just have a non existent spawn rate and the game crashes when the taming page is opened.