Thousands of Instagram users got an unwelcome Halloween scare as their accounts were blocked or suspended.

One user said the Mark Zuckerberg-owned site had asked for their email and phone number to get the suspended account to work again.

“We’re aware that some of you are having issues accessing your Instagram account. We’re looking into it and apologize for the inconvenience,” Instagram said on its Twitter account Monday.

The Post has sought comment from Instagram and its parent company, Meta Platforms Inc.

Nearly 7,000 users of Instagram were impacted, according to outage-tracking website Downdetector, which collates status reports from a number of sources including user-submitted errors on its platform.

The outage may be affecting a much larger number of users.

Several Instagram users posted screenshots on their Twitter accounts showing that they were logged out of their accounts without explanation — even after appealing their suspension.

One Instagram user tweeted: “Some of us had to put in our email and phone number to verify the account. Now the password has been changed and we can’t get back in because our password has been changed.”

Another frustrated Instagram user wrote on Twitter: “It’s not just down — you’re suspending accounts and threatening deletion!!”

The glitch appears to be affecting high-profile Instagram account holders such as soccer star Cristiano Ronaldo.

Ronaldo, who had 493 million Instagram followers just a day ago, appears to have lost 3 million followers, according to The Verge.

With Post wires