error a la hora de guardar datos

[construmet4]

Es posible que el error de la generación de la consulta, esté en el archivo php del módulo en cuestión?

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Este es el contenido que tengo en el archivo del modulo LlamadasRecibidas.php

<?php
/*+**********************************************************************************
* The contents of this file are subject to the vtiger CRM Public License Version 1.0
* ("License"); You may not use this file except in compliance with the License
* The Original Code is: vtiger CRM Open Source
* The Initial Developer of the Original Code is vtiger.
* Portions created by vtiger are Copyright © vtiger.
* All Rights Reserved.
************************************************************************************/
require_once 'data/CRMEntity.php';
require_once 'data/Tracker.php';

class llamadasrecibidas extends CRMEntity {
public $db;
public $log;

public $table_name = 'vtiger_llamadasrecibidas';
public $table_index= 'llamadasrecibidasid';
public $column_fields = array();

/** Indicator if this is a custom module or standard module */
public $IsCustomModule = true;
public $HasDirectImageField = false;
/**
* Mandatory table for supporting custom fields.
*/
public $customFieldTable = array('vtiger_llamadasrecibidascf', 'llamadasrecibidasid');
// related_tables variable should define the association (relation) between dependent tables
// FORMAT: related_tablename => array(related_tablename_column[, base_tablename, base_tablename_column[, related_module]] )
// Here base_tablename_column should establish relation with related_tablename_column
// NOTE: If base_tablename and base_tablename_column are not specified, it will default to modules (table_name, related_tablename_column)
// Uncomment the line below to support custom field columns on related lists
// var $related_tables = array('vtiger_llamadasrecibidascf' => array('llamadasrecibidasid', 'vtiger_llamadasrecibidas', 'llamadasrecibidasid', 'llamadasrecibidas'));

/**
* Mandatory for Saving, Include tables related to this module.
*/
public $tab_name = array('vtiger_crmentity', 'vtiger_llamadasrecibidas', 'vtiger_llamadasrecibidascf');

/**
* Mandatory for Saving, Include tablename and tablekey columnname here.
*/
public $tab_name_index = array(
'vtiger_crmentity' => 'crmid',
'vtiger_llamadasrecibidas' => 'llamadasrecibidasid',
'vtiger_llamadasrecibidascf' => 'llamadasrecibidasid',
);

/**
* Mandatory for Listing (Related listview)
*/
public $list_fields = array (
/* Format: Field Label => array(tablename => columnname) */
// tablename should not have prefix 'vtiger_'
'LlamadasRecibidas'=> array('llamadasrecibidas' => 'llamadasrecibidasid'),
'Assigned To' => array('crmentity' => 'smownerid')
);
public $list_fields_name = array(
/* Format: Field Label => fieldname */
'LlamadasRecibidas'=> 'llamadasrecibidasid',
'Assigned To' => 'assigned_user_id'
);

// Make the field link to detail view from list view (Fieldname)
public $list_link_field = 'llamadasrecibidas';

// For Popup listview and UI type support
public $search_fields = array(
/* Format: Field Label => array(tablename => columnname) */
// tablename should not have prefix 'vtiger_'
'LlamadasRecibidas'=> array('llamadasrecibidas' => 'llamadasrecibidasid')
);
public $search_fields_name = array(
/* Format: Field Label => fieldname */
'LlamadasRecibidas'=> 'llamadasrecibidas'
);

// For Popup window record selection
public $popup_fields = array('llamadasrecibidas');

// Placeholder for sort fields - All the fields will be initialized for Sorting through initSortFields
public $sortby_fields = array();

// For Alphabetical search
public $def_basicsearch_col = 'llamadasrecibidas';

// Column value to use on detail view record text display
public $def_detailview_recname = 'llamadasrecibidas';

// Required Information for enabling Import feature
public $required_fields = array('llamadasrecibidas'=>1);

// Callback function list during Importing
public $special_functions = array('set_import_assigned_user');

public $default_order_by = 'llamadasrecibidasid';
public $default_sort_order='DESC';
// Used when enabling/disabling the mandatory fields for the module.
// Refers to vtiger_field.fieldname values.
public $mandatory_fields = array('createdtime', 'modifiedtime', 'llamadasrecibidas');

public function save_module($module) {
if ($this->HasDirectImageField) {
$this->insertIntoAttachment($this->id, $module);
}
}

/**
* Invoked when special actions are performed on the module.
* @param String Module name
* @param String Event Type (module.postinstall, module.disabled, module.enabled, module.preuninstall)
*/
public function vtlib_handler($modulename, $event_type) {
if ($event_type == 'module.postinstall') {
// TODO Handle post installation actions
$this->setModuleSeqNumber('configure', $modulename, $modulename.'-', '0000001');
} elseif ($event_type == 'module.disabled') {
// TODO Handle actions when this module is disabled.
} elseif ($event_type == 'module.enabled') {
// TODO Handle actions when this module is enabled.
} elseif ($event_type == 'module.preuninstall') {
// TODO Handle actions when this module is about to be deleted.
} elseif ($event_type == 'module.preupdate') {
// TODO Handle actions before this module is updated.
} elseif ($event_type == 'module.postupdate') {
// TODO Handle actions after this module is updated.
}
}

/**
* Handle saving related module information.
* NOTE: This function has been added to CRMEntity (base class).
* You can override the behavior by re-defining it here.
*/
// public function save_related_module($module, $crmid, $with_module, $with_crmid) { }

/**
* Handle deleting related module information.
* NOTE: This function has been added to CRMEntity (base class).
* You can override the behavior by re-defining it here.
*/
//public function delete_related_module($module, $crmid, $with_module, $with_crmid) { }

/**
* Handle getting related list information.
* NOTE: This function has been added to CRMEntity (base class).
* You can override the behavior by re-defining it here.
*/
//public function get_related_list($id, $cur_tab_id, $rel_tab_id, $actions=false) { }

/**
* Handle getting dependents list information.
* NOTE: This function has been added to CRMEntity (base class).
* You can override the behavior by re-defining it here.
*/
//public function get_dependents_list($id, $cur_tab_id, $rel_tab_id, $actions=false) { }
}
?>

Faltan los campos?, con este archivo realiza todas las construcciones de las consultas que realiza COREBOS?