I am running orthomclPairs and getting the following error : Unknown column 'taxon_id_a' in 'field list' at orthomclPairs line 693,

the ortholog table has been created with following specifications: sequence_id_a | varchar(15) | sequence_id_b | varchar(15) | taxon_id_a | varchar(15) | taxon_id_b | varchar(15) | unnormalized_score | float
| normalized_scor e | float

I dont understand that when the column is present, why it is going me this error. I checked if I am connected to right database but everything else looks fine.Any help will be greatly appreciated because I am stuck with this error for a while.