Error installing Exchange2016

I was trying to install Exchange Server 2016 on Windows Server 2016, everything was going smoothly. But, unfortunately someone switched off my Machine where I have installed Virtual Box and running both AD and Exchange installation. It as in the process of installing Roles (5/14). When i started the setup again I am getting the below error.

Error:
The following error was generated when "$error.Clear(); 
$roleList = $RoleRoles.Replace('Role','').Split(',');
if($roleList -contains 'LanguagePacks')
{
& $RoleBinPath\ServiceControl.ps1 Save
& $RoleBinPath\ServiceControl.ps1 DisableServices $roleList;
& $RoleBinPath\ServiceControl.ps1 Stop $roleList;
};
" was run: "System.Management.Automation.MethodInvocationException: Exception calling "Reverse" with "1" argument(s): "Value cannot be null.
Parameter name: array" ---> System.ArgumentNullException: Value cannot be null.
Parameter name: array
at System.Array.Reverse(Array array)
at CallSite.Target(Closure , CallSite , Type , Object )
--- End of inner exception stack trace ---
at System.Management.Automation.ExceptionHandlingOps.ConvertToMethodInvocationException(Exception exception, Type typeToThrow, String methodName, Int32 numArgs, MemberInfo memberInfo)
at CallSite.Target(Closure , CallSite , Type , Object )
at System.Dynamic.UpdateDelegates.UpdateAndExecute2[T0,T1,TRet](CallSite site, T0 arg0, T1 arg1)
at System.Management.Automation.Interpreter.DynamicInstruction`3.Run(InterpretedFrame frame)
at System.Management.Automation.Interpreter.EnterTryCatchFinallyInstruction.Run(InterpretedFrame frame)".

Could you please help.