You may have a positive anti-HBsAg report if you have been vaccinated for HBV
But variation in the reports of HBsAg reactivity is a fallacy of either lab. I would advise getting the test from some standardised lab along with HBeAg, anti-HBeAg, anti-HBcAg
and viral load
study which will not only confirm the results but also tell you prospective of management if really reactive.