I’m not seeing a problem noted at https://fhf-misc.instatus.com/ , but every attempt I’ve made to get to friendica.world or https://friendica.world/profile/wistquotes/ throws back a 503. This started early yesterday (US time) through this posting. I’ve been checking in on a pretty regular basis.
Friendica is written in PHP. If you didn’t hear, there is a big security issue with PHP that got announced yesterday. Many PHP web admins took their sites down until they could install security patches, and your friendica instance could be one of them.
Definitely aware of the PHP issue, and I thought that might well be the case. But lacking any notification about the outage that I could find, I thought it worth trying to get confirmation.