[Screenshot from 2026-07-29 15-33-52] [Screenshot from 2026-07-29 15-34-06] How do I fix this?

Try to run in terminal sudo apt remove --purge libdecor-0-plugin-1-gtk:i386 and then sudo apt --fix-broken install To check if the package manager is repaired, then run sudo apt update && sudo apt upgrade and look if there are shown errors.