Failed executing command

Failed executing command (Object reference not set to an instance of an object)
at UIBuilder Oxide.Plugins.FurnaceUpgrades+UIBuilder.AddImage(string parent, string image, string color, string anchor, string offset, string name) in /home/rustserver/serverfiles/carbon/plugins/FurnaceUpgrades.cs:line 2746
at void Oxide.Plugins.FurnaceUpgrades.ShowModal(BasePlayer player, BaseOven oven) in /home/rustserver/serverfiles/carbon/plugins/FurnaceUpgrades.cs:line 2636
at void Oxide.Plugins.FurnaceUpgrades.ConsoleCommandUI(Arg arg) in /home/rustserver/serverfiles/carbon/plugins/FurnaceUpgrades.cs:line 779
at object System.Reflection.RuntimeMethodInfo.Invoke(object obj, BindingFlags invokeAttr, Binder binder, object[] parameters, CultureInfo culture)

Whren click Update Button

You need to install the ImageLibrary plugin https://umod.org/plugins/image-library

We have Image Library installed and have been using the plugin for a very long time without any issues. The problem was introduced by the update released earlier today.

We have already fixed the issue ourselves. I'll send you the corrected file in a message. This version is running flawlessly on our server.