i get this error when i run the BinLogInstall.ps1 query

error:

Checksum verified successfully.
DLL Version detected: 1.1.14.0
Installing CLR assembly C:\Fivetran\Fivetran-Log-Data-1.1.14.dll
Run-SqlScript : CRITICAL ERROR during 'Fivetran CLR DLL SQL Server Setup Script': Exception calling "Open" with "0" argument(s): "A network-related or instance-specific error occurred while 
establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. 
(provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)"
At C:\DBE\fivetran\BinLogInstall.ps1:391 char:1
+ Run-SqlScript -script $clrDllSetupSql "Fivetran CLR DLL SQL Server Se ...
+ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [Write-Error], WriteErrorException
    + FullyQualifiedErrorId : Microsoft.PowerShell.Commands.WriteErrorException,Run-SqlScript
 
Exception calling "Open" with "0" argument(s): "A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. 
Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server)"
At C:\DBE\fivetran\BinLogInstall.ps1:191 char:9
+         $connection.Open()
+         ~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [], MethodInvocationException
    + FullyQualifiedErrorId : SqlException