it looks like you are using data, headers, params, searchParams, or a short-lived cache without a Suspense boundary nor a "use cache" above it. So add either "use cache" or a Suspense boundary around it and the error is fixed

Yes, I realize that. but I can't find where.

it's somewhere inside your route /cp/servers/[id]. So I suggest you add a suspense boundary very high up (that wraps everything) and check if the error is gone

@Pine Bunting solved?

Unfortunately not. I gave up and am currently redoing the whole project. Maybe I'll find the error then 🙂 I'll let you know if it works then

did you try this?
https://nextjs-forum.com/post/1305523854348779642#message-1305543125086769223 (<---- click)

yes

perfect, then the error is not in the tree itself. It's more inside your page.tsx (but before the return)

i have commented out 95% of the file and the error still occurs

do you have a layout?

yes, but it doesn't make the error on other pages. But I'll take it out for a test