“There is a problem, please try again later”
but always the same message when I try to update the system
Which distro? What happens if you update via terminal?
You’ll at least need to share the technical details (avaliable by clicking the button visible in the screenshot) before anyone can help. After we see that, we can tell you what rhe problem is and which distro is to blame. 
because it is a distro problem, not a Discover problem.
well:
DISTRIB_ID=neon
DISTRIB_RELEASE=22.04
DISTRIB_CODENAME=jammy
DISTRIB_DESCRIPTION=“KDE neon 5.27”
I tried update the system over Terminal, no failure, evening I will may tell more…
everything is fine,
thank you!