The file wiki/data/media/how_to/research_planner//tasks-_active_by_repository.fhq does not exist. http://www.fhug.org.uk/pushfile.php?filename=tasks-_active_by_repository.fhq&name=Tasks-+Active+by+Repository&ns=how_to/research_planner/
Please email admin@fhug.org.uk with the error shown above.