i'm having some problems in Okular versioon. I installed the latest one, but i got and error of session management and it is opening an older one. ``` snap install okular okular 20.04.0 from KDEβ installed okular -v Qt: Session management error: Could not open network socket okular 1.10.0 sudo okular -v No protocol specified qt.qpa.xcb: could not connect to display :0 qt.qpa.plugin: Could not load the Qt platform plugin "xcb" in "" even though it was found. This application failed to start because no Qt platform plugin could be initialized. Reinstalling the application may fix this problem. Available platform plugins are: eglfs, linuxfb, minimal, minimalegl, offscreen, vnc, wayland-egl, wayland, wayland-xcomposite-egl, wayland-xcomposite-glx, xcb. Aborted ```
*** This bug has been marked as a duplicate of bug 397463 ***