When joining my dedicated server I get the following error. I can load the same save locally without an issue.

The mod GUI Unifyer: Unified (2.0.3) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event GUI_Unifyer_Unified::on_nth_tick(6)
GUI_Unifyer_Unified/control.lua:815: attempt to index global 'global' (a nil value)
stack traceback:
GUI_Unifyer_Unified/control.lua:815: in function <GUI_Unifyer_Unified/control.lua:811>

Thanks for reporting the issue, are you using any mods and perhaps peaceful mode? I'll look into this when I'm home later today, sorry for the inconvenience.

We have enabled peaceful mode on nauvis through the console. And yes we use plenty of mods on the server.

I think I've narrowed it down and fixed the issue, can you please let me know if it works now?

Unfortunately not, see below, looks very much like the same error.

The mod GUI Unifyer: Unified (2.0.4) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event GUI_Unifyer_Unified::on_nth_tick(6)
GUI_Unifyer_Unified/control.lua:815: attempt to index global 'global' (a nil value)
stack traceback:
GUI_Unifyer_Unified/control.lua:815: in function <GUI_Unifyer_Unified/control.lua:811>

Hm... Okay... I tried a more agressive approach, can you try the new version?

If you still have the issue happen, please give me the factorio-current.log, I added some more logging in the latest version that should help pinpoint it better

2.0.6 has even more comprehensive logging, so if the issue still happens, run with that version instead and if possible give me the log files.

Issue is resolved, thank you very much!

Awesome, I'm glad to hear that! If you run into any other issues feel free to let me know.

I also got an error when joining a dedicated server (or hosting a save game):

The mod GUI Unifyer: Unified (2.0.6) caused a non-recoverable error.
Please report this error to the mod author.

Error while running event GUI_Unifyer_Unified::on_player_joined_game (ID 46)
GUI_Unifyer_Unified/control.lua:670: attempt to index global 'global' (a nil value)
stack traceback:
GUI_Unifyer_Unified/control.lua:670: in function 'general_update_event'
GUI_Unifyer_Unified/control.lua:693: in function <GUI_Unifyer_Unified/control.lua:685>

I've updated the mod, it should fix the crash you're seeing. Please let me know if it works with the latest 2.0.8 build. If not, can you open the log file and send it here? That way I can further troubleshoot what's going wrong .

The factorio-current.log file should be located in:

Windows:
C:\Users[your user name]\AppData\Roaming\%appdata%\Factorio

MacOSX:
~/Library/Application Support/factorio

Linux:
~/.factorio

When using the Flatpak version of steam:
~/.var/app/com.valvesoftware.Steam/.factorio

Seems to work now, thanks! :)