Unable to Post Photos for Sales on Facebook Due to "Security Check Required" Error

Hello, I’ve been using my Facebook account to share photos and make sales. However, for the past week, whenever I try to post, I get a message saying “security check required.” When I click the link, it leads to an error. I’ve tried this on multiple devices, but the problem persists.

I rely on Facebook for my business, and this issue is seriously affecting my ability to operate. I urgently request that Facebook addresses this problem and resolves it as soon as possible.