daninet@daninet-pc:~/Documents$ ./Superpaper-2.2.1-x86_64.AppImage
/tmp/.mount_SuperpDmCnFv/usr
/home/daninet/.config/superpaper
/home/daninet/.config/superpaper/profiles
/usr/lib/x86_64-linux-gnu/gio/modules/libgiognutls.so: undefined symbol: g_byte_array_steal
Failed to load module: /usr/lib/x86_64-linux-gnu/gio/modules/libgiognutls.so
/tmp/_MEIupkgIp/libstdc++.so.6: version `GLIBCXX_3.4.29' not found (required by /lib/x86_64-linux-gnu/libproxy.so.1)
Failed to load module: /usr/lib/x86_64-linux-gnu/gio/modules/libgiolibproxy.so
/usr/lib/x86_64-linux-gnu/gio/modules/libgiognomeproxy.so: undefined symbol: g_task_set_name
Failed to load module: /usr/lib/x86_64-linux-gnu/gio/modules/libgiognomeproxy.so

(Superpaper-2.2.1-x86_64.AppImage:90954): Gtk-WARNING **: 13:45:04.024: Theme parsing error: gtk.css:1649:16: '-gtk-icon-size' is not a valid property name

(Superpaper-2.2.1-x86_64.AppImage:90954): Gtk-WARNING **: 13:45:04.024: Theme parsing error: gtk.css:1652:16: '-gtk-icon-size' is not a valid property name

(Superpaper-2.2.1-x86_64.AppImage:90954): Gtk-WARNING **: 13:45:04.027: Theme parsing error: gtk.css:3382:25: 'font-feature-settings' is not a valid property name
Fontconfig warning: "/etc/fonts/fonts.conf", line 5: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/10-hinting-slight.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/10-scale-bitmap-fonts.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/10-sub-pixel-rgb.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/10-yes-antialias.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/11-lcdfilter-default.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/20-unhint-small-vera.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/30-metric-aliases.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/40-nonlatin.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/45-generic.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/45-latin.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/48-spacing.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/49-sansserif.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/50-user.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/51-local.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/60-generic.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/60-latin.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/65-nonlatin.conf", line 4: unknown element "description"
Fontconfig warning: "/etc/fonts/conf.d/70-no-bitmaps.conf", line 4: unknown element "description"

(Superpaper-2.2.1-x86_64.AppImage:90954): Gtk-WARNING **: 13:45:04.436: Could not load a pixbuf from icon theme.
This may indicate that pixbuf loaders or the mime database could not be found.
**
Gtk:ERROR:../../../../gtk/gtkiconhelper.c:494:ensure_surface_for_gicon: assertion failed (error == NULL): Failed to load /home/daninet/.local/share/icons/ePapirus-Dark/48x48/status/image-missing.svg: Unable to load image-loading module: /usr/lib/x86_64-linux-gnu/gdk-pixbuf-2.0/2.10.0/loaders/libpixbufloader-svg.so: /tmp/_MEIupkgIp/libstdc++.so.6: version `GLIBCXX_3.4.30' not found (required by /lib/x86_64-linux-gnu/libicuuc.so.72) (gdk-pixbuf-error-quark, 5)
Aborted (core dumped)