Minecraft will not load at all. Very serious bug. Please address ASAP. (I have created a thread for this bug before but the staff just ignore it)

Hello! I am wanting to address a very serious bug I am having which is currently making my game unplayable. So normally, whenever I open Minecraft, it shows the Mojang logo, then the screen goes white for about a minute, then it says Minecraft and has the gray bars towards the bottom of the screen, then it sends me to the main menu and I can start playing. However, this bug makes it so that whenever I open Minecraft, it shows the Mojang logo, then the screen goes white for about a minute, but when it gets to where it says Minecraft and shows the gray bars going up and down, it just stops. No matter how long I walk away from my iPad, when I come back, I still see Minecraft and those gray bars moving up and down. Basically it won't load past there. I desperately need help with this bug so please fix this as soon as you can. Thanks in advance. P.S. if you don't know what I'm talking about when I say the gray bars, just look at the picture.🙂