Hello

this is a bug for a quick fix please change the following code

file : <joomla installation>/components/com_multileague/models/playerhistory.php should be at line 69

Code:
->where("g.week=".$week." AND pp.user_id=".$user)
change this line of code to

Code:
->where("g.week=".$week." AND g.season_id=$season AND pp.user_id=".$user)
also in file :<joomla installation>/components/com_multileague/views/playerhistory/view.html.php at line 49~50

Code:
if($season==""){
      $this->seasonObj=$model->getSeasons();
change it to

Code:
$this->seasonObj=$model->getSeasons();
if($season==""){

(swap those lines)