https://www.moi.gov.qa/ResPrint/Actions?action=geteServicesResVisaInput&...

visit the above link, you'll be required to enter the following.

1.Visa No:
2.ID No. of Sponsor /Representative /Authorized signatory:
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as tvmeexpat mentioned try getting the help from someone who knows arabic, because you'll have to fill-out the following information.
1.Blood group (sometimes it will display an inappropriate one, so please choose the right one)
2. passport issued date.
etc...