Notice: Undefined index: subform-profile_abcd_player-field_abcd_player_team-und-0-exposed_filters in relation_select_ajax() (line 886 of modules/contrib/relation_select/relation_select.module).
Warning: Invalid argument supplied for foreach() in relation_select_ajax() (line 903 of modules/contrib/relation_select/relation_select.module).

/etc/php5/apache2/php.ini
/etc/php5/cli/php.ini

apt-get update && apt-get install php5-imap