Unturned Linux Server Bug

Steam can not be initialized: Steamworks GameServer is not initialized.
Error in MulticastDelegate PluginsLoaded: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.InvalidOperationException: Steamworks GameServer is not initialized.
  at Steamworks.InteropHelp.TestIfAvailableGameServer () [0x00000] in <filename unknown>:0
  at Steamworks.SteamGameServer.SetKeyValue (System.String pKey, System.String pValue) [0x00000] in <filename unknown>:0
  at Rocket.Unturned.U+<>c.<Initialize>b__15_2 () [0x00000] in <filename unknown>:0
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (object,object[],System.Exception&)
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
  --- End of inner exception stack trace ---
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
  at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0
  at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0
  at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0
  at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in <filename unknown>:0
  at Rocket.Core.Extensions.MulticastDelegateExtension.TryInvoke (System.MulticastDelegate theDelegate, System.Object[] args) [0x00000] in <filename unknown>:0
This server will automatically save every 1800 seconds
System.SystemException: Error running gmcs: Cannot find the specified file
  at Mono.CSharp.CSharpCodeCompiler.CompileFromFileBatch (System.CodeDom.Compiler.CompilerParameters options, System.String[] fileNames) [0x00000] in <filename unknown>:0
  at Mono.CSharp.CSharpCodeCompiler.CompileAssemblyFromFileBatch (System.CodeDom.Compiler.CompilerParameters options, System.String[] fileNames) [0x00000] in <filename unknown>:0
  at Mono.CSharp.CSharpCodeCompiler.CompileAssemblyFromFile (System.CodeDom.Compiler.CompilerParameters options, System.String fileName) [0x00000] in <filename unknown>:0
  at System.Xml.Serialization.XmlSerializer.GenerateSerializers (System.Xml.Serialization.GenerationBatch batch, System.CodeDom.Compiler.CompilerParameters cp) [0x00000] in <filename unknown>:0
  at System.Xml.Serialization.XmlSerializer.RunSerializerGeneration (System.Object obj) [0x00000] in <filename unknown>:0