Mensaje de error

• Notice: Undefined index: und en conf_blocks_get_field_value_string() (línea 124 de /home/deployer/sites/escuela/current/sites/all/modules/custom/conf_blocks/plugins/content_types/conf_blocks_node_type_date.inc).
• Notice: Trying to access array offset on value of type null en conf_blocks_get_field_value_string() (línea 124 de /home/deployer/sites/escuela/current/sites/all/modules/custom/conf_blocks/plugins/content_types/conf_blocks_node_type_date.inc).
• Notice: Trying to access array offset on value of type null en conf_blocks_get_field_value_string() (línea 124 de /home/deployer/sites/escuela/current/sites/all/modules/custom/conf_blocks/plugins/content_types/conf_blocks_node_type_date.inc).
• Notice: Undefined index: en conf_blocks_get_field_value_string() (línea 126 de /home/deployer/sites/escuela/current/sites/all/modules/custom/conf_blocks/plugins/content_types/conf_blocks_node_type_date.inc).
• Notice: Array to string conversion en conf_blocks_type_date_render() (línea 71 de /home/deployer/sites/escuela/current/sites/all/modules/custom/conf_blocks/plugins/content_types/conf_blocks_node_type_date.inc).