You’d need to report the error the the developer of that plugin.

This is my plugin, everything was fine before the update.
// Reference: PrefabAttribute.Library does not help

piece of problem code:

foreach (var construction in PrefabAttribute.server.GetAll<Construction>())
                if (construction.deployable == null && construction.info.name.english != string.Empty && !_prefabsNameToName.ContainsKey(construction.fullName))
                    _prefabsNameToName[construction.fullName] = construction.info.name.english;​

UP! Fail RemoveTools Dont Working need update error is in 

PrefabAttribute.server.GetAll​

this has been fixed, update the RemoverTool witht he latest version https://umod.org/plugins/r-remover-tool

The error isn't specific to a plugin, it depends on what plugin the user is using. Per the first post, the user is using NexusRemover, not RemoverTool.

Sorry for the long delay of the message, everything has already decided, it's strange that developers removed the reflection in this place.