Error while refreshing simple web data calls through web app

[belurrashmi]

I am able to refresh complex web data source involved with multiple invoked custom columns using desktop app.

However simple web data source also failing in web app with error . Any thoughts on additonal configuration for web app?

Hide	On demand	2/16/2018, 1:42:44 PM	2/16/2018, 1:43:06 PM	Failed	Cannot connect to the mashup data source. See error details for more information.
Underlying error code: -2147467259 Table: project. Underlying error message: We reached the end of the buffer. DM_ErrorDetailNameCode_UnderlyingHResult: -2147467259 Microsoft.Data.Mashup.ValueError.Reason: DataFormat.Error Cluster URI: WABI-US-NORTH-CENTRAL-redirect.analysis.windows.net Activity ID: fb192cad-6c62-4a34-9f01-b6b4e59762d7 Request ID: 35502043-76f0-3911-f379-60dc86a40c2b Time: 2018-02-16 18:43:06Z

[v-micsh-msft]

The error message should be temproary.

If you published this from Power BI Desktop, then please take a check to see if you have updated Power Bi Desktop to the last version.

After that, publish the PBIX again to check.

A thread for your reference.

Regards,

Michael

[belurrashmi]

I am still having this issue even after publishing with updated desktop version

Last refresh failed: Thu Feb 22 2018 17:02:09 GMT-0500 (Eastern Standard Time) 
Your data gateway (personal mode) is offline or couldn't be reached.Hide details

Processing error:	Your data gateway (personal mode) is offline or could not be reached. Ensure the gateway computer is on and you are logged on to it during the scheduled refresh period.
Cluster URI:	WABI-US-NORTH-CENTRAL-redirect.analysis.windows.net
Activity ID:	c838281e-6f54-4659-9e50-b76219271e4d
Request ID:	409bbe31-49a8-2f0d-81c1-2c1ea0f6072e
Time:	2018-02-22 22:02:09Z