AMP Stop Instances Error

AMP@f37739f1dd89:~/AMP$ ./ampinstmgr --StopAllInstances
[Info] AMP Instance Manager v1.6.0.0 built 20/01/2018 16:00
[Debug] Release spec: Release - built by CUBECODERS/BuildBot on CCL-DEV
[Debug] Starting process /sbin/ldconfig
[Debug] Working Directory: /home/AMP/AMP
[Debug] Arguments: -p
[Debug] Started process with ID 1105
[Debug] Starting process /bin/uname
[Debug] Working Directory: /home/AMP/AMP
[Debug] Arguments: -m
[Debug] Started process with ID 1106
[Debug] Loading instances from /home/AMP/.ampdata/instances.json...
[Debug] Loaded 1 instances.
[Info] Stopping Instance: 'MinecraftInstance'
[Info] Stopping instance MinecraftInstance...
IM was unable to execute there requested command. $System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.AggregateException: One or more errors occurred. ---> System.IO.FileNotFoundException: Couldn't find the specified application.
  at ModuleShared.Utilities.RunUtility (System.String ExecutableFile, System.String Arguments, System.String WorkingDirectory, ModuleShared.RunningTask MonitorTask) [0x00020] in <085f964b33d04062ad2439a6b26263b8>:0
  at InstanceManagerPlugin.LocalInstanceManager+<StopInstance>d__105.MoveNext () [0x00226] in <10b823e7ad4842e4ba6e5f8a3841ab76>:0
   --- End of inner exception stack trace ---
  at System.Threading.Tasks.Task.ThrowIfExceptional (System.Boolean includeTaskCanceledExceptions) [0x00011] in <3574b7750bbd4f3481d1561b74d01b33>:0
  at System.Threading.Tasks.Task.Wait (System.Int32 millisecondsTimeout, System.Threading.CancellationToken cancellationToken) [0x00043] in <3574b7750bbd4f3481d1561b74d01b33>:0
  at System.Threading.Tasks.Task.Wait () [0x00000] in <3574b7750bbd4f3481d1561b74d01b33>:0
  at InstanceManagerCLI.Core.StopAllInstances (System.String Instances) [0x0011f] in <83d206714df5491eb87887042279d6aa>:0
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
  at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00032] in <3574b7750bbd4f3481d1561b74d01b33>:0
   --- End of inner exception stack trace ---
  at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00048] in <3574b7750bbd4f3481d1561b74d01b33>:0
  at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <3574b7750bbd4f3481d1561b74d01b33>:0
  at InstanceManagerCLI.Core.Run () [0x00425] in <83d206714df5491eb87887042279d6aa>:0