I have some errors on log file:

ticket.name as name,
ticket.idTicketType as idtickettype,
ticket.idStatus as idstatus,
ticket.idProject as idproject,
ticket.idProduct as idproduct,ticket.idProduct as idproduct, ticket.idPriority as idpriority, ticket.idTargetProductVersion as idtargetproductversion, ticket.idActivity as idactivity, workelement.plannedWork as plannedwork, workelement.realWork as realwork, workelement.assignedWork as assignedwork, ticket.description as description, workelement.leftWork as leftwork, ticket.idResource as iduser,
status.sortOrder,
resource.fullName as name4,
version.name as name5 FROM workelement, status, ticket left join resource on ticket.idresource=resource.id left join version on ticket.idTargetProductVersion=version.id WHERE status.id=ticket.idStatus AND ticket.idStatus in (14,15,16,17,18,19,20,21,22,23,24,25,27,28,29) AND workelement.refType='Ticket' AND workelement.refId=ticket.id and 1=1 AND ticket.idle=0
2017-10-16 18:50:29.594 ** ERROR ** [V6.4.2] Strack trace :
2017-10-16 18:50:29.594 ** ERROR ** [V6.4.2] #0 Sql->query called at [/var/www/projeqtor/plugin/kanban/kanbanView.php:718]
2017-10-16 18:50:29.595 ** ERROR ** [V6.4.2] #1 queryToDo called at [/var/www/projeqtor/plugin/kanban/kanbanView.php:324]
2017-10-16 18:50:29.595 ** ERROR ** [V6.4.2] #2 drawColumnKanban called at [/var/www/projeqtor/plugin/kanban/kanbanView.php:213]