My error is display on my personal mobile connect to the company database to get the data, do you mean if the gateway installed successfully on my laptop i.e. using Power BI Services then the report publish to the cloud then download to my mobile could see the result ?
I have not yet successfully install the gateway on my laptop due to the company network policy.
Based on the error message, it says your gateway can't connect the server. Please verify the server name and credential you provide it correct on Power BI Service. And make sure your Gateway is online on that server.