It’s known that you can block people on Facebook who annoys or threatens you. It’s also quite known that one can’t block co-founder of Facebook, Mark Zuckerberg or his wife Priscilla Chan due to surprising reason. But soon, you will be able to do so! Read on. The reason due to which you can’t block Zuck or his wife Priscilla on Facebook is because so many people have tried to block him already. Here’s more explanation from a Facebook spokesperson: “The error isn’t specific to any one account,” a Facebook spokesperson revealed earlier this year. “It’s generated when a person has been blocked a certain large number of times. In very rare instances, a viral campaign will develop instructing lots of people to all wrongly block the same person.” However, a report from Buzfeed suggests that Facebook is currently working on this issue and will be fixed soon. Mark Zuckerberg told the website that his team is working on to fix this error but it could take some time.