Broken screenlocker

Goodday!

After restarting my laptop after an update to NixOS 25.05.813260.6c8f0cca8451 (Warbler) x86_64 with KDE Plasma 6.3.6 I got the message that my screenlocker was broken and how to do a manual install. Is this a known issue and is there any way for me to fix this?

Thank you so much in advance!