Facebook often update their security settings, and so they should. It's good to have as much control as possible over what you want other people to see.
There are a lot of settings though, and some of them can trip you up if you are assigning Page Roles.
The Government has recognised that businesses need to either get on-line or for those that are already on-line, that they need to invest in their websites. There has also been a forward step in their shift in thinking that every business needs a digital marketing strategy in order to help get themselves found. I have been saying the same thing to clients for years now.
Organic reach on Facebook is declining all the time due to the increasing number of brands who are have joined the social media channel. As users like more and more pages, the amount of posts they see from your Facebook page gets diluted downwards all the time. This drop in the organic reach of your page's posts is making it increasingly hard to get traction on Facebook.