Still not working on Fedora 28

[mariansam]

I know that a few people already opened an issue like this... I installed the extension, there it only said "Error". So I looked at journalctl /usr/bin/gnome-shell, it said something about missing NMClient, i installed all packages that included libnm (sudo dnf install "*libnm*"). Once more enabled the extension and... GNOME crashed. Output from journalctl /usr/bin/gnome-shell that i think is useful:

Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: Archive:  /tmp/K6VYNZ.shell-extension.zip
Aug 17 11:30:58 sheldon gnome-shell[1746]: libnm symbols detected; Mixing libnm with libnm-util/libnm-glib is not supported
Aug 17 11:30:58 sheldon audit[1746]: ANOM_ABEND auid=1000 uid=1000 gid=1000 ses=2 subj=unconfined_u:unconfined_r:unconfined_t:s0-s0:c0.c1023 pid=1746 comm="gnome-shell" exe="/usr/bin/gnome-shell" sig=5 res=1
Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: == Stack trace for context 0x563642038240 ==
Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: #0 0x563642471a90 i   /home/marian/.local/share/gnome-shell/extensions/show-ip@sgaraud.github.com/extension.js:92 (0x7f6c5b2ea918 @ 82)
Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: #1 0x7ffedaebf3f0 I   resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f6c8bdb5de0 @ 71)
Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: #2 0x7ffedaebf440 I   resource:///org/gnome/gjs/modules/_legacy.js:18 (0x7f6c8bdb5a28 @ 36)
Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: #3 0x7ffedaebf500 b   resource:///org/gnome/gjs/modules/_legacy.js:114 (0x7f6c8bdb5f78 @ 178)
Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: #4 0x5636424719f0 i   /home/marian/.local/share/gnome-shell/extensions/show-ip@sgaraud.github.com/extension.js:411 (0x7f6c485586f8 @ 72)
Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: #5 0x7ffedaec0130 I   resource:///org/gnome/gjs/modules/_legacy.js:82 (0x7f6c8bdb5de0 @ 71)
Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: #6 0x7ffedaec0170 I   resource:///org/gnome/gjs/modules/_legacy.js:18 (0x7f6c8bdb5a28 @ 36)
Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: #7 0x7ffedaec0220 b   resource:///org/gnome/gjs/modules/_legacy.js:114 (0x7f6c8bdb5f78 @ 178)
Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: #8 0x563642471960 i   /home/marian/.local/share/gnome-shell/extensions/show-ip@sgaraud.github.com/extension.js:434 (0x7f6c48558890 @ 41)
Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: #9 0x7ffedaec0f10 b   resource:///org/gnome/shell/ui/extensionSystem.js:129 (0x7f6c8bc54b38 @ 408)
Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: #10 0x5636424718c8 i   resource:///org/gnome/shell/ui/extensionSystem.js:171 (0x7f6c8bc54c48 @ 241)
Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: #11 0x563642471820 i   resource:///org/gnome/shell/ui/extensionDownloader.js:251 (0x7f6c8bc60808 @ 213)
Aug 17 11:30:58 sheldon org.gnome.Shell.desktop[1746]: #12 0x5636424717a0 i   resource:///org/gnome/shell/ui/extensionDownloader.js:105 (0x7f6c8bc60230 @ 57)

Info about my system:

[marian@sheldon ~]$ uname -a
Linux sheldon 4.17.12-200.fc28.x86_64 #1 SMP Fri Aug 3 15:01:13 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
[marian@sheldon ~]$ lsb_release -a
LSB Version:    :core-4.1-amd64:core-4.1-noarch
Distributor ID: Fedora
Description:    Fedora release 28 (Twenty Eight)
Release:    28
Codename:   TwentyEight
[marian@sheldon ~]$ gnome-shell --version
GNOME Shell 3.28.3
[marian@sheldon ~]$