[Solved] Pet Missions causing webpage crash on student iPads.

Ever since the most recent update (I believe April 2018) some of my students have been experiencing crashes of the webpage when attempting to login. They will enter their login information, there will be a splash screen telling them their pet finished a mission, and then the page will crash and reload. The page will repeat the crash and reload repeatedly without end. Most students are using safari on their iPads. has this problem been reported already? I could not find any information on it. if you have a way to help my fix the issue i would appreciate it, very frustrating.