Within hours of launching Marketplace, which is basically Facebook's version of Craigslist, the forum had been overrun with people selling bizarre and illegal items.
According to CNN, a can of beer in Pittsburgh, Pennsylvania, was listed for $25. Weird, but not quite as out there as the next one.
In London, someone tried to sell his pregnant girlfriend for $400.
There was also a post from someone in Glen Cove, New York, selling 6-ounces of "pure, clear, water."
Here's the catch, it was listed for $56 and the water bottle wasn't included.
On Tuesday, Facebook said the strange posts were because of a "technical issue."
Facebook didn't elaborate on what the issue was. The company only said that the issue prevented the review system from filtering out posts that violated its Commerce Policies.
Facebook's guidelines prohibit drugs, animals, "adult items or services," alcohol and weapons from being sold on Marketplace.
"We are working to fix the problem and will be closely monitoring our systems to ensure we are properly identifying and removing violations before giving more people access to Marketplace," Mary Ku, Facebook's Director of Product Management told CNN in a statement.
Facebook is also working on its image recognition technology, which could help prevent illegal products from being sold on the platform.
For more news, check out today's 60 Second Circa.