Screen goes white whenever I run the app

[kabir]

I am creating a news app with mit app inventor in which the owner can post a news I am using firebase database to store the news so that all users can see the news and I am also using google login in the app with TaifunGoogleAccount extension and I have 5 vertical arrangements in the app (as mentioned in the image) . the vertical arrangement 5 contains the google login system and it is supposed to show whenever we run the app but whenever I am running the app instead of all the components I have in the arrangement it is just showing a white screen, just a blank white screen and when I am clicking on the place where I have placed the google login button it is working fine means it is allowing me to pick a google account and continue to app after that. But I am really dissapointed with the white screen. Please help.
(here are some images related to my issue)

[TIMAI2]

We need to see your relevant blocks. i can just see a procedure being run in Screen1.initialise ?
Seems like the background image is not being loaded? Too big, wrong file location ?
Also, what themes have you set: white text on white background ?

[kabir]

basically it was running fine before i made some changes in my app but the changes were not related to the vertical arrangement 5 (in which the problem is occuring).

[kabir]

i tried changing the background but still it is not working?? please help

[TIMAI2]

Please provide more information about
Your blocks on initialisation
How are you setting the background?
What type of image file? Size? File Location ?
Which companion/emulator? Device Android version ?
The list could go on...

perhaps upload here a copy of your aia project....

[kabir]

ok thanks it is working fine now i was using an extension which was not working fine i removed the block related to it