Invisible GUI

I cannot see the main menu GUI, normally there would be a play, settings, and marketplace button but now when I open the app they don't come up whick makes the game unplayable, first I downloaded a texture pack that changes the main menu and next I downloaded another texture pack that changes the background that comes when you interact with a crafting table, after enabling both of the texture packs I left the settings and the main menu GUI dissapeared and the game became unplayable, I tried everything to fix it. I deleted the texture packs from my files using an app but it didn't work, I updated minecraft, and nothing, I rejoined the game, and nothing.