Ohh, sorry:) So, I install joomleague v1.5.2.d9b29b6 on a joomla 1.5.9. In the joomleague admin, I created a project,after I created a league, after a season, and after the teams. I created 14 teams, and they are published, and assigned to the project. I created two matchdays, but when I linked in a main menu the "Rankings" or "Results", I got many errors... You see. When I linked in a main menu "Clubinfo" , that works perfectly.