Why did Gnome Software stop working?

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Hello,

When I launch Gnome Software, the window appears but nothing loads. It just remains a blank window.

When I run it from terminal I get:

17:18:23:0643 As  system/flatpak/gnome/runtime/org.freedesktop.Platform/1.6 has token cache, invaliding as flatpak was added
17:18:23:0643 As  system/flatpak/gnome/runtime/org.freedesktop.Platform/1.4 has token cache, invaliding as flatpak was added
17:18:23:0643 As  system/flatpak/gnome/runtime/org.gnome.Platform/3.20 has token cache, invaliding as flatpak was added
17:18:23:0643 As  system/flatpak/gnome/runtime/org.gnome.Platform/3.22 has token cache, invaliding as flatpak was added
17:18:23:0643 As  system/flatpak/gnome/runtime/org.gnome.Platform/3.24 has token cache, invaliding as flatpak was added
17:18:23:0643 As  system/flatpak/gnome/runtime/org.gnome.Platform/3.26 has token cache, invaliding as flatpak was added
17:18:23:0643 As  system/flatpak/gnome/runtime/org.freedesktop.Sdk/1.4 has token cache, invaliding as flatpak was added
17:18:23:0643 As  system/flatpak/gnome/runtime/org.freedesktop.Sdk/1.6 has token cache, invaliding as flatpak was added
17:18:23:0643 As  system/flatpak/gnome/runtime/org.gnome.Sdk/3.20 has token cache, invaliding as flatpak was added
17:18:23:0643 As  system/flatpak/gnome/runtime/org.gnome.Sdk/3.24 has token cache, invaliding as flatpak was added
17:18:23:0643 As  system/flatpak/gnome/runtime/org.gnome.Sdk/3.22 has token cache, invaliding as flatpak was added
17:18:23:0643 As  system/flatpak/gnome/runtime/org.gnome.Sdk/3.26 has token cache, invaliding as flatpak was added
17:18:23:0670 As  system/flatpak/org.gnome.Games-origin/desktop/org.gnome.Games.desktop/stable has token cache, invaliding as flatpak was added

Also, when I run DNF in terminal (like dnf update, clean all, etc.) I get a message about lockers:

BDB2053 Freeing read locks for locker 0xca: 6229/139678225632896
BDB2053 Freeing read locks for locker 0xcc: 6229/139678225632896
BDB2053 Freeing read locks for locker 0xcf: 6229/139677674624768

Any idea what happened?