Server Error in '/' Application.

Configuration Error 
  Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately. 

 Parser Error Message: Could not load file or assembly 'netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=1111111' or one of its dependencies. The system cannot find the file specified.

Source Error: 


An application error occurred on the server. The current custom error settings for this application prevent the details of the application error from being viewed remotely (for security reasons). It could, however, be viewed by browsers running on the local server machine.
  

 Source File:  C:\Inetpub\vhosts\domain.com\httpdocs\web.config    Line:  53 

Assembly Load Trace: The following information can be helpful to determine why the assembly 'netstandard, Version=2.0.0.0, Culture=neutral, PublicKeyToken=1111' could not be loaded.


WRN: Assembly binding logging is turned OFF.
To enable assembly bind failure logging, set the registry value [HKLM\Software\Microsoft\Fusion!EnableLog] (DWORD) to 1.
Note: There is some performance penalty associated with assembly bind failure logging.
To turn this feature off, remove the registry value [HKLM\Software\Microsoft\Fusion!EnableLog].

من یه اسکریپت نوشتم که روی ASP .NET 4.7.0 کار باید بکنه و هاست من هم همین نسخه رو الان فعال داره. خطای بالا رو میگیرم در زمان مشاهده سایت 

طبق نظر اساتید گرامی مشکل به کجا میتونه مربوط باشه؟  

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