An unexpected error occurred.

mysql error: [3065: Expression #1 of ORDER BY clause is not in SELECT list, references column 'kiaora.fsfl.fsDisplayOrder' which is not in SELECT list; this is incompatible with DISTINCT] in EXECUTE("SELECT DISTINCT f.fID, u.uName as fvAuthorName FROM Files f INNER JOIN FileVersions fv ON f.fID = fv.fID LEFT JOIN Users u on u.uID = fv.fvAuthorUID left join FileSearchIndexAttributes on (fv.fID = FileSearchIndexAttributes.fID) left join FileSetFiles fsfl on fsfl.fID = f.fID where 1=1 and fv.fvType = '1' and fvIsApproved = '1' and ((select count(fID) from FileSetFiles where FileSetFiles.fID = f.fID and fsID in (-1)) = 0) and (f.uID = 0 or (select count(fID) from FileSetFiles where FileSetFiles.fID = f.fID and fsID in (-1)) = 0) and f.fID IN (SELECT DISTINCT fID FROM FileSetFiles WHERE fsID = '1') order by fsDisplayOrder asc, fID asc limit 0,1000 ")