Connection/Loading issues on Hoyolab

I've started a mail with Hoyolab, but they didn't immediately report a known issue with their site/server, so I'm gonna ask here. Anybody else encounter issues like the ones seen in the attached pictures? I tried updating my browser and system, but things break again eventually, and the 1st picture ALWAYS happen when I try to accomplish the objective "View 3 posts under the topic (1/3)" of Hilichurl Treasure Trove (I will never know which topic it was supposed to be). OS: Windows 10 Browser: Firefox ESR 102.9 edit! changed "4th" to "1st", the pictures weren't uploaded in the order I expected :P