galaxy of heroes won't load on ipad

[DepecheEddie]

Running galaxy of heroes on older version of iPad (os 10.3.3) - play pretty much every day but two days ago just stopped loading. I don't have my unique player id (!) to hand so not sure on options .. been playing for a few years so don't won't to lose progress. Should I wait it out for an update or anyone have other ideas ?

thanks.