Unable to evaluate the expression. An error occurred that usually indicates a corrupt installation (code 0x80004002)

I use Visual Studio 2015 and SQL Server 2016 and also I use COZYROC component for SSIS for working with SFTP.

I what move all files between two folder in SFTP. For that. I have created a variable (V_FilesNameList) with object data type. Then, I have used a COZYROC SFTP Task for getting the list of files name on SFTP server:

This is a configuration for above component :

Then, I have created a foreach loop on my variable (V_FilesNameList). And inside the loop I want to change the name of each file and copy it to the new address.

But I have this error :

Error: ForEach Variable Mapping number 1 to variable 
    "User::V_File_Name_Old" cannot be applied.
Error: ForEach Variable Mapping number 919997528 
     to variable "껤ʧ" cannot be applied.

And when I want to watch the value inside the my variable (V_FilesNameList) in Watch windows, I have this error :

    V_FilesNameList Unable to evaluate the expression. An error occurred 
      that usually indicates a corrupt installation (code 0x80004002). 
    If the problem persists, repair your Visual Studio installation via 
       'Add or Remove Programs' in Control Panel.   

Why I have those errors? And how can I move the files between two folder in SFTP server with SSIS?

And how can I move the files between two folder in SFTP server with SSIS?

1. Download Files (File Transfer Task CozyRoc) to your file system inside some folder (configurable Project Parameter)
2. Now using the Foreach Loop Container (Set Enumerator -> ForEach File Enumerator ) get complete file path for each file.
3. Using File Transfer Task move file to the SFTP.
4. Using File System Task delete all files from the local folder (Where files are download in step 1).