I paper filed my tax on April but IRS system still shows "We cannot provide any information about your refund"

I paper filed my tax on April 2022 with tracked mail. I confirmed that my tax return was delivered to the IRS, but when I check "Where is My Refund" on the IRS website, it shows "We cannot provide any information about your refund". Is there anyone who has the similar issue? Is there anything I need to do other than waiting?