Support » Plugin: LeagueManager » [Plugin: LeagueManager] Activation problem

  • After activation of the plugin leaguemanager this MessagePad showing up ‘Warning: call_user_func_array() expects parameter 1 to be a valid callback, first array member is not a valid class name or object in …/wp-includes/plugin.php on line 403’.
    Wp 3.4.2 & lm 3.8
    Thank you,
    Francesco

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

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