Can anyone fix my problems please?

i’m new in unreal

every thing was works great

but yesterday when i click on launch or play

the quality being low

but before week was full hd

i tried to fix it from setting but it doesn’t work

what should i do please tell me ??

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my second problem is when i’m packing my game for android

i had an error message in debug

it says "there was an unknown error "

what is the problem i had installed sdk and ndk an every things from nvidia program

if i missed some thing tell me please ??

thank you for help i’ll try to see if this will fix graphics

and i’ll upload screenshots of my error soon

thank you again

here is my screenshot for quality problem

i didn’t find anything about how can i fix that i tried to restore all settings to default but nothing happen

the quality still the same (poor quality)

my laptop is acer 4th generation and 8gb ram , 4gb nvidia card, 2.3gh cpu

it was work greet but what happened to quality

and this is screenshots for packing error

i only show the warning and error massages

can you tell me whats wrong please ??

Above viewport you have settings then open Engine Scalability settings if there is on High or Epic and you still have problem, look in World Outliner, if you have post process Volume under misc ,Screen Percentage default is 100 , and every camera have their own post process check them too
I hope that will help you.

thanks for your help i’m sure every thing is ok i check the setting and it is on epic and still have poor quality

but to day i tried to delete all unreal registry and every thing back to normal now the quality is perfect but i still have a problem of packing my projects

and i don’t find any thing to fix it

is there any one have this issue or it is only me ??