The Justice Party is ballot-qualified in Mississippi. On September 5, two days before the deadline, it submitted its candidates for presidential elector. On September 10 the party was informed that one of its candidates for presidential elector is not a registered voter and is therefore ineligible. The party substituted a new candidate on the same day, but the Board of Canvassers rejected the new elector but said that Anderson would still be on the ballot, but if he won the popular vote, he would be disadvantaged because he would only have five presidential electors instead of six.
But, the state then started printing ballots and omitted Anderson’s name from the ballot. However, in the past, Mississippi has permitted presidential candidates to appear on its November ballot even though the candidate did not have a full slate of elector candidates. For example, in both 1972 and 1980 the Socialist Workers Party (which qualified Linda Jenness as its presidential nominee via the independent petition method, and Andrew Pulley in 1980 the same way) did not submit a complete slate of presidential elector candidates, but Mississippi still printed the candidates on the ballot.
The reason one of the electors isn’t registered to vote is that his registration was canceled without his being told that it had been canceled. In 2007 he had been charged with statutory rape because, as a 25-year-old, he had had sex with a 17-year-old girl he had met in a bar. She had a fake ID which said she was over age 18. He plea-bargained, was given no penalty, but apparently that eliminated his voter registration, although he did not know that. Here is a new story. Thanks to Austin Cassidy for the link.