Warning: Invalid argument supplied for foreach()

[Nicola4600]

Ciao come da titolo ricevo un errore durante l' esecuzione del codice seguente:

    foreach ($JLMS_LANGUAGE as $jl_key => $jl_value) {
        if (!defined($jl_key)) {
            if ($do_utf && $utf_method) {
                if ($utf_method == 'utf8_encode') {
                    $jl_value = utf8_encode($jl_value);
                } elseif ($utf_method == 'cp1251_manual') {
                    $jl_value = JLMS_cp1251_to_utf8($jl_value);
                }
            }
            define($jl_key, $jl_value);
        }
    } 

che si basa sul seguente codice:

    JLMS_processLanguage( $JLMS_LANGUAGE, false, "backend" );
    $option = "com_joomla_lms";
    switch ( $task )
    {
    case "lms_forums" :
        require_once( _JOOMLMS_ADMIN_HOME."/files/admin.forums.php" );
        break;
    case "lms_roles" :
        require_once( _JOOMLMS_ADMIN_HOME."/files/admin.roles.php" );
        break;
    case "lms_users" :
        require_once( _JOOMLMS_ADMIN_HOME."/files/admin.users.php" );
        break;
    case "group_managers" :
        require_once( _JOOMLMS_ADMIN_HOME."/files/admin.group_managers.php" );
        break;
    case "lms_".__FILE__."tenance" :
        require_once( _JOOMLMS_ADMIN_HOME."/files/admin.".__FILE__."tenance.php" );
        break;
    case "dev_config" :
        require_once( _JOOMLMS_ADMIN_HOME."/files/admin.dev_config.php" );
        break;
    case "page_tips" :
        JLMS_PageTipsList( $option );
        break;
    case "edit_ptip" :
        JLMS_editPageTip( intval( $cid[0] ), $option );
        break;
    case "editA_ptip" :
        JLMS_editPageTip( $id, $option );
        break;
    case "new_ptip" :
        JLMS_editPageTip( 0, $option );
        break;
    case "cancel_ptip" :
        mosRedirect( "index.php?option={$option}&task=page_tips" );
        break;
    case "apply_ptip" :
    case "save_ptip" :
        JLMS_savePageTip( $option, $task );
        break;
    case "del_ptip" :
        JLMS_delPageTip( $cid[0], $option );
        break;
    case "roles" :
        JLMS_RolesList( $option );
        break;
    case "edit_role" :
        JLMS_editRole( intval( $cid[0] ), $option );
        break;
    case "editA_role" :
        JLMS_editRole( $id, $option );
        break;
    case "new_role" :
        JLMS_editRole( 0, $option );
        break;
    case "cancel_role" :
        mosRedirect( "index.php?option={$option}&task=roles" );
        break;
    case "apply_role" :
    case "save_role" :
        JLMS_saveRole( $option, $task );
        break;
    case "del_role" :
        JLMS_delRole( intval( $cid[0] ), $option );
        break;
    case "new_payment" :
        JLMS_CreateNewPayment( $option );
        break;
    case "save_newpayment" :
        JLMS_SaveNewPayment( $option );
        break;
    case "sales_report_pdf" :
    case "sales_report" :
        JLMS_salesReport( $option );
        break;
    case "cancel_newpayment" :
        mosRedirect( "index.php?option={$option}&task=payments" );
        break;
    case "pays_list_pdf" :
    case "payments" :
        JLMS_PaymentsList( $option );
        break;
    case "edit_payment" :
        JLMS_EditPaymentInfo( $cid[0], $option );
        break;
    case "editA_payment" :
        JLMS_EditPaymentInfo( $id, $option );
        break;
    case "del_payments" :
        JLMS_removeFromPayments( $option );
        break;
    case "save_payment" :
        JLMS_savePaymentInfo( $option );
        break;
    case "cancel_payment" :
    case "skip_change" :
        mosRedirect( "index.php?option={$option}&task=payments" );
        break;
    case "apply_change" :
        JLMS_changePaymentInfo_FOR_user( $option, $cid, $id );
        break;
    case "get_payment_invoice" :
        JLMS_getPaymentInvoice( $id, $option );
        break;
    case "gen_payment_invoice" :
        JLMS_GenerateNewInvoice( $id, $option );
        break;
    case "assign" :
        JLMS_assign( 0, $option );
        break;
    case "save_assign" :
        JLMS_saveAssign( $option );
        break;
    case "cancel_assign" :
        JLMS_cancelAssign( $option );
        break;
    case "subscriptions" :
        JLMS_ListSubscriptions( $option );
        break;
    case "subscription_save" :
        JLMS_saveSubscription( $option );
        break;
    case "subscription_apply" :
        JLMS_saveSubscription( $option, true );
        break;
    case "publish_subscription" :
        JLMS_changeSubscriptions( $cid, 1, $option );
        break;
    case "delete_subscription" :
        JLMS_removeFromSubscriptions( $option );
        break;
    case "unpublish_subscription" :
        JLMS_changeSubscriptions( $cid, 0, $option );
        break;
    case "edit_subscription" :
        JLMS_NewEditSubscription( $cid[0], $option );
        break;
    case "editA_subscription" :
        JLMS_NewEditSubscription( $id, $option );
        break;
    case "new_subscription" :
        JLMS_NewEditSubscription( $cid[0], $option );
        break;
    case "renew" :
        JLMS_ReNewSubscription( $cid[0], $option );
        break;
    case "renew_apply" :
        JLMS_ReNewSubscriptionApply( $cid, $id, $option );
        break;
    case "cancel_sub" :
        cancelSubscription( $option );
        break;
    case "processorslist" :
        JLMS_showProcessorsList( $option );
        break;
    case "default_p" :
        changeProcessor( $option, $id );
        break;
    case "defaulta_p" :
        changeProcessor( $option, $cid[0] );
        break;
    case "publish_proc" :
        changeProc( $cid, 1, $option );
        break;
    case "unpublish_proc" :
        changeProc( $cid, 0, $option );
        break;
    case "edit_p" :
        editProcessor( intval( $cid[0] ), $option );
        break;
    case "editA_p" :
        editProcessor( $id, $option );
        break;
    case "save_p" :
    case "apply_p" :
        saveProcessor( $option, $task );
        break;
    case "cancel_p" :
        cancelProcessor( $id );
        break;
    case "plans" :
        JLMS_showPlans( $option );
        break;
    case "duplicate_plan" :
        JLMS_duplicatePlan( $cid, $option );
        break;
    case "edit_plan" :
        JLMS_editPlan( intval( $cid[0] ), $option );
        break;
    case "editA_plan" :
        JLMS_editPlan( $id, $option );
        break;
    case "new_plan" :
        JLMS_editPlan( "0", $option );
        break;
    case "save_plan" :
        JLMS_savePlan( $option );
        break;
    case "delete_plan" :
        JLMS_removePlan( $cid, $option );
        break;
    case "cancel_plan" :
        JLMS_cancelPlan( );
        break;
    case "publish_plan" :
        JLMS_changePlan( $cid, 1, $option );
        break;
    case "unpublish_plan" :
        JLMS_changePlan( $cid, 0, $option );
        break;
    case "new_discount" :
        JLMS_editDiscount( 0, $option );
        break;
    case "edit_discount" :
        JLMS_editDiscount( intval( $cid[0] ), $option );
        break;
    case "editA_discount" :
        JLMS_editDiscount( $id, $option );
        break;
    case "delete_discount" :
        JLMS_deleteDiscount( $cid, $option );
        break;
    case "enable_discount" :
        JLMS_changeDiscount( $cid, 1, $option );
        break;
    case "disable_discount" :
        JLMS_changeDiscount( $cid, 0, $option );
        break;
    case "save_discount" :
        JLMS_saveDiscount( $option );
        break;
    case "cancel_discount" :
        JLMS_cancelDiscount( $option );
        break;
    case "discounts" :
        JLMS_showDiscounts( $option );
        break;
    case "new_discount_coupon" :
        JLMS_editDiscountCoupon( 0, $option );
        break;
    case "edit_discount_coupon" :
        JLMS_editDiscountCoupon( intval( $cid[0] ), $option );
        break;
    case "editA_discount_coupon" :
        JLMS_editDiscountCoupon( $id, $option );
        break;
    case "delete_discount_coupon" :
        JLMS_deleteDiscountCoupon( $cid, $option );
        break;
    case "enable_discount_coupon" :
        JLMS_changeDiscountCoupon( $cid, 1, $option );
        break;
    case "disable_discount_coupon" :
        JLMS_changeDiscountCoupon( $cid, 0, $option );
        break;
    case "save_discount_coupon" :
        JLMS_saveDiscountCoupon( $option );
        break;
    case "cancel_discount_coupon" :
        JLMS_cancelDiscountCoupon( $option );
        break;
    case "discount_coupons" :
        JLMS_showDiscountCoupons( $option );
        break;
    case "discount_coupons_statistics" :
        JLMS_showDiscountCouponsStatistics( $option );
        break;
    case "config_subscriptions" :
        configSubscription( $option );
        break;
    case "save_subconf" :
        saveSubsConfig( $option );
        break;
    case "publish_c" :
        jlms_changeCountry( $cid, 1, $option );
        break;
    case "unpublish_c" :
        jlms_changeCountry( $cid, 0, $option );
        break;
    case "new_c" :
        jlms_editCountry( "0", $option );
        break;
    case "edit_c" :
        jlms_editCountry( intval( $cid[0] ), $option );
        break;
    case "editA_c" :
        jlms_editCountry( $id, $option );
        break;
    case "save_c" :
        jlms_saveCountry( $option );
        break;
    case "remove_c" :
        jlms_removeCountry( $cid, $option );
        break;
    case "cancel_c" :
        jlms_cancelCountry( );
        break;
    case "countrieslist" :
        jlms_showCountriesList( $option );
        break;
    case "save_default_tax" :
        jlms_saveDefaultTax( $option );
        break;
    case "users" :
        mosRedirect( "index.php?option={$option}&task=lms_users" );
        break;
    case "add_user" :
        JLMS_editUser( 0, $option );
        break;
    case "edit_user" :
        JLMS_editUser( intval( $cid[0] ), $option );
        break;
    case "editA_user" :
        JLMS_editUser( $id, $option );
        break;
    case "apply_user" :
    case "save_user" :
        JLMS_saveUser( $option );
        break;
    case "cancel_user" :
        JLMS_cancelUser( $option );
        break;
    case "del_user" :
        JLMS_removeUser( $cid, $option );
        break;
    case "csv_operations" :
        jlms_listOperation( 0 - 1, $option );
        break;
    case "csv_import" :
        jlms_listOperation( 0, $option );
        break;
    case "csv_export" :
        jlms_listOperation( 1, $option );
        break;
    case "csv_delete" :
        jlms_listOperation( 2, $option );
        break;
    case "csv_do_import" :
        jlms_csvImport( $option );
        break;
    case "csv_do_export" :
        jlms_csvExport( $option );
        break;
    case "csv_do_delete" :
        jlms_csvDelete( $option );
        break;
    case "csv_do_delete_yes" :
        jlms_csvDelete_yes( $option );
        break;
    case "csv_back_to" :
        jlms_csvBackTo( $option );
        break;
    case "classes" :
        JLMS_ListClasses( $option );
        break;
    case "add_class" :
        JLMS_editClass( 0, $option );
        break;
    case "edit_class" :
        JLMS_editClass( intval( $cid[0] ), $option );
        break;
    case "editA_class" :
        JLMS_editClass( $id, $option );
        break;
    case "del_class" :
        JLMS_delClass( $cid, $option );
        break;
    case "apply_class" :
    case "save_class" :
        JLMS_saveClass( $option );
        break;
    case "cancel_class" :
        JLMS_cancelClass( $option );
        break;
    case "view_class" :
        JLMS_viewClass( 0, $option );
        break;
    case "viewA_class" :
        JLMS_viewClass( $cid[0], $option );
        break;
    case "remove_from_class" :
        JLMS_removeFromClass( $option );
        break;