I like to show you my pavers,there are some problems with it. I added the pictures of it.
Please tell me what I should do, I already added the sealer,it did not remove the whiteness in those parts in the picture.

Thank You

That is efflorescence. Should have been removed prior to sealing.

I already sealed them. And now that part looks super white, I am not sure how that whiteness occured. But after sealing it looks even brighter, do you know how to remove that?

Thank You

You need to strip the pavers. Not easy and not very fun. We cannot ship paver strippers due to Hazardous materials. You could try to find a stripper at you local store that contains 'methylene chloride". A common brand name is "Dads Stripper" After you get the sealer off you will need to remove the efflorescence. This is a white soluble salt. We sell two types of cleaners for this.
Effortless 1 Gallon | Eaco Chem Cleaners | The Sealer Store

Saferestore 1 Gallon | Eaco Chem Cleaners | The Sealer Store

The Effortless is more effective. These cleaners will not work until you remove the sealer first.

Thats complicated ahhhh