Some instances have gone down recently, does anyone know why?

• https://lemmy.film
• https://unilem.org
• https://lemmy.ninja it's back
• https://lemmy.cafe/ it's back!
• https://lemmy.perthchat.org/
• https://pathfinder.social/
• https://wayfarershaven.eu/

Are there others?

Also, it seems like a lot, does anyone know why they all went down at the same time?

https://lestat.org/