Nyxt starts up to window 'sbcl': "The name of the session to restore: "

My initial installation via the .deb package works well on my Debian (WSL 2) setup.

However, upon reading the possibility to control nyxt in emacs via slime and didn’t succeed with the native apt-get installations (of sbcl, nyxt, emacs), I uninstalled sbcl and nyxt and reinstalled them using guix as suggested.

Now, nyxt starts up only to a blank nyxt window titled ‘sbcl’, prompting me to answer:
"The name of the session to restore: "

the output of

$> nyxt --verbose

is as below:

(process:6714): Gtk-WARNING **: 03:20:38.618: Locale not supported by C library.
Using the fallback ‘C’ locale.
Arguments parsed: (VERBOSE T) and NIL
Nyxt version 2-pre-release-3
[03:20:39] nyxt start.lisp (bind-socket-or-quit) -
Listening to socket “/home/menuhin/.local/share/nyxt/nyxt.socket”.
[03:20:39] nyxt renderer-gtk.lisp (ffi-initialize gtk-browser) -
Initializing GTK Interface
AcceleratedBackingStoreWayland requires glEGLImageTargetTexture2D or shm interface

(sbcl:6714): Gtk-WARNING **: 03:20:39.615: Could not find the icon ‘window-close-symbolic-ltr’. The ‘hicolor’ theme
was not found either, perhaps you need to install it.
You can get a copy from:
Index of /releases
[03:20:39] nyxt session.lisp (restore-session-by-name form-fun-6) -
Calling command RESTORE-SESSION-BY-NAME.
[03:20:39] nyxt mode.lisp (make-mode) -
NYXT::MODE-SYMBOL: NYXT::MINIBUFFER-MODE
BUFFER: #<USER-MINIBUFFER {100A664283}>
(NYXT::MODE-COMMAND NYXT::MODE-SYMBOL): #<NYXT::COMMAND {10039C5823}>
[03:20:39] nyxt/minibuffer-mode minibuffer-mode.lisp (minibuffer-mode form-fun-13) -
Calling command MINIBUFFER-MODE.
[03:20:39] nyxt/minibuffer-mode minibuffer-mode.lisp (minibuffer-mode form-fun-13) -
MINIBUFFER-MODE enabled.

(process:6744): Gtk-WARNING **: 03:20:39.879: Locale not supported by C library.
Using the fallback ‘C’ locale.

(process:6746): Gtk-WARNING **: 03:20:39.925: Locale not supported by C library.
Using the fallback ‘C’ locale.
[03:20:43] nyxt start.lisp (quit form-fun-6) - Calling command QUIT.
[03:20:43] nyxt start.lisp (quit form-fun-6) -
Deleting socket “/home/menuhin/.local/share/nyxt/nyxt.socket”.

How can I restore a normal start of the nyxt browser?

I fixed it by upgrading nyxt via guix:

$> guix pull

$> guix upgrade