Payout button is still grey even i have reached payout requirements

It appears, from the graph, that it has not been more than 45 days since your first sale. When you pass that threshold, you'll be able to request a payout.

Here are the payment requirements:

Once you’ve accrued more than US$25 in royalties on Adobe Stock, you can request a payout as long as the following criteria is met:

• You've got a validated tax form on file in your account.

• At least 45 days have passed since your first Adobe Stock sale. (You can make subsequent payment requests when you reach the US$25 threshold again).

• You've got a valid PayPal, Payoneer, or Skrill account available to receive funds.