There are ballot errors – the misspellings, typos and misalignments that can prompt last-minute changes ahead of Election Day. Then there are errors, and Stephen D’Angelo found himself on the receiving end of a major one. On Oct. 6, a Saturday, the Democratic nominee for Rockingham County District 4 received a flood of emails with alerts from supporters. The absentee ballots had been sent out to voters, the emails said, and D’Angelo’s name wasn’t on them. In the box for the Democrat in his House race, instead, was D’Angelo’s primary opponent Russell Norman, whom he had defeated in September by five votes. One Republican representative from the same five-seat district, Jess Edwards, had posted a screenshot of the ballot on a Facebook page. “I thought he was kidding,” D’Angelo, of Chester, said in an interview. “I thought it was a joke at first. I looked on the secretary of state’s website and lo and behold, it was accurate.”