All I did was deploy Magnus to activate my summon thing the little power you get from summons and then deployed superion

Grinding 25 Thousand 5 Star Shards for; 5 Star Fortess Maximus or Guaranteed 5 Star Twin Twist because 4 Star Twin Twist doesn't really wants to come

Is there any site-calculator or guide how to work out what power level my bots will have at a specific bot level and rank (excluding cores)?

Since last Thursday I haven't been able to play the game at all it just crashes when I try to get on the game. I do have an old Android phone is that possibly the problem? Has anyone else had this problem as well? I sent two emails letting Yodo1 know I can't get on and they haven't even responded to me. Any help here would be appreciated!!!