Threading compilation failed for '/home/container/carbon/plugins/CustomVendingSetup.cs' [Thread Pool Worker|80] (Argument null or empty
Parameter name: fullName)
at void Mono.Cecil.Mixin.CheckFullName(string fullName)
at TypeDefinition Mono.Cecil.ModuleDefinition.GetType(string fullName)
at TypeDefinition Carbon.Generator.InternalCallHook.FindTypeInAssemblies(string fullName) in /home/runner/work/Carbon/Carbon/src/Carbon.Tools/Carbon.Generator.Shared/Generator.cs:line 26
at int Carbon.Generator.InternalCallHook.GetMethodParameterDepthScore(MethodDeclarationSyntax method) in /home/runner/work/Carbon/Carbon/src/Carbon.Tools/Carbon.Generator.Shared/Generator.cs:line 78
at InternalCallHookTypeModel Carbon.Generator.InternalCallHook.CreateModel(CompilationUnitSyntax input, BaseNamespaceDeclarationSyntax namespace, List<ClassDeclarationSyntax> classes, List<string> usingsList, IEnumerable<MetadataReference> references, CSharpParseOptions options) in /home/runner/work/Carbon/Carbon/src/Carbon.Tools/Carbon.Generator.Shared/Generator.cs:line 177
at void Carbon.Generator.InternalCallHook.GeneratePartial(CompilationUnitSyntax input, out CompilationUnitSyntax output, CSharpParseOptions options, string fileName, List<ClassDeclarationSyntax> classes, string debugOutputPath, List<string> usingsList, IEnumerable<MetadataReference> references) in /home/runner/work/Carbon/Carbon/src/Carbon.Tools/Carbon.Generator.Shared/Generator.cs:line 106
at void Carbon.Jobs.ScriptCompilationThread.ThreadFunction() in /home/runner/work/Carbon/Carbon/src/Carbon/src/Threads/ScriptCompilationThread.cs:line 567

any help appreciated.

It's a oxide plugin. Try it using oxide.