Unable to access internet banking

[Ooladolla]

Hi, I'm using the Krungsi application on an Apple device to do my internet banking. i haven't ben able to log in for a few days now as it gives the message ..'internet connection error'. I've tried deleting and reinstalling the app but that made no difference.

i was able to access the account online through my Samsung phone app. but now that gives the same message. Anyone else had a similar problem. The internet is working fine for everything else so ? 

Thanks