Hi Amar,
Attaching pictures of your crash log is not a good practice.
I like to use CTRL + F to find the word ‘ERROR’ in my logs, this should lead you to the source of the problem. (In this case “.uasset has newer custom… (the image cuts off the rest)”
So I’d say mention the error in the thread, and feel free to attach the full log as a .txt
I did a google search for that error and came across this thread.
When you said you tried deleting the folder, was that just via the content browser? You may need to open up the file explorer and manually delete these ‘ghost assets’
Hope that helps.