DM_GWPipeline_Gateway_MashupDataAccessError error on a Enterprise Gateway

Hi all,

I've setup the personal gateway on my computer and the refresh works mannualy and scheduled without any errors. When I'm trying to get the Enterprise gateway working on a server i received the following error. We've already tried changing the language in the database but it didnt work out. 

The server has already been rebooted since that was a common solution for some of you but it didn't work out. Please let me know how this would be fixable.

Thanks in advance!

Data source error:	{"error":{"code":"DM_GWPipeline_Gateway_MashupDataAccessError","pbi.error":{"code":"DM_GWPipeline_Gateway_MashupDataAccessError","parameters":{},"details":[{"code":"DM_ErrorDetailNameCode_UnderlyingErrorCode","detail":{"type":1,"value":"-2147467259"}},{"code":"DM_ErrorDetailNameCode_UnderlyingErrorMessage","detail":{"type":1,"value":"The specified culture is not supported."}},{"code":"DM_ErrorDetailNameCode_UnderlyingHResult","detail":{"type":1,"value":"-2147467259"}},{"code":"Microsoft.Data.Mashup.ValueError.Detail","detail":{"type":1,"value":"en-NL"}},{"code":"Microsoft.Data.Mashup.ValueError.Reason","detail":{"type":1,"value":"DataFormat.Error"}}],"exceptionCulprit":1}}} Table: datalake provincies.
Cluster URI:	WABI-UK-SOUTH-redirect.analysis.windows.net
Activity ID:	3314e1cb-29ce-44ce-b29c-6179298ca4a3
Request ID:	93605832-fe40-e172-a533-73df1ab753dc
Time:	2020-06-05 14:24:57Z