Please check the quantity in from warehouse. The red background of order item means that you don't have that quantity in the warehouse.

The quantity are enough see attached file

May I know your version and the how the quantity was added. If you can provide the site details with credentials in private reply.

How you have added the quantity? I don't see any purchase?

Please provide me the step to replicate/reproduce it on demo.

Can you please provide me the step to reproduce the issue. How you added the products, stock and when issue caused. So that I can follow them to test and find the cause.

product I added them using import module
I added the product through stock count for each warehouse