Why do I keep having "Error loading, please retry" on any market group on facebook

A

AC Question

I visit market groups a lot but recently, it says "Error loading, please retry." And it's so frustrating. I keep on refreshing but nothing happens. Even when I try it on browser, it's still the same. It has been days when it happened and till now it's the same.

I already tried everything. I rebooted my phone. I log-out my account. I cleared cache. I updated my facebook app. I uninstalled it and re install. I don't know what to do anymore.