About Workgroup and Enterprise version

Hello,

Is it possible to use the workgroup or enterprise version on premise instead of the cloud?

Tried to send this question from the "Contact us" form on your Web site, but it doesn't work. I get this message:

<ApiErrorModel xmlns:i="http://www.w3.org/2001/XMLSchema-instance"; xmlns="http://schemas.datacontract.org/2004/07/Microsoft.Azure.WebJobs.Script.WebHost.Models">;

<Arguments xmlns:d2p1="http://schemas.microsoft.com/2003/10/Serialization/Arrays"; i:nil="true"/><ErrorCode>0</ErrorCode><ErrorDetails i:nil="true"/><Id>8cfbf0f7-caf7-4028-a9a9-414211bb5c4a</Id><Message>An error has occurred. For more information, please check the logs for error ID 8cfbf0f7-caf7-4028-a9a9-414211bb5c4a</Message><RequestId>a46958a7-cd8d-4735-b0ac-550438d9279f</RequestId><StatusCode>InternalServerError</StatusCode>

</ApiErrorModel>

Thank you