Match statistics

Hi,
I am trying to add match statistics.
I have added a stat named “Red Cards” and the field is ‘Team Roster’ type.
When I go to a match and try to add a red card I click on the player icon and when I select the team player I get this error in firebug:

Uncaught TypeError: Object #<Object> has no method ‘insertPlayer’ admin.php?page=leaguemanager&subpage=matchstats&league_id=14&match_id=1273:327

Also if I try to remove the stat I get this error:

Uncaught TypeError: Object #<Object> has no method ‘removeField’ admin.php?page=leaguemanager&subpage=matchstats&league_id=14&match_id=1273:344

Finally if I change the field to ‘text’ I print a name and when I press save statistics the name i just typed is not saved, althought i get no errors.

http://wordpress.org/plugins/leaguemanager/