Error message

• Warning: simplexml_load_file(): /var/www/html/pages/alco.pro/privat/price.xml:1: parser error : Document is empty in es_import_parse_feed() (line 98 of /var/www/html/pages/alco.pro/public_html/sites/all/modules/es_bach_import/es_bach_import.module).
• Warning: simplexml_load_file(): in es_import_parse_feed() (line 98 of /var/www/html/pages/alco.pro/public_html/sites/all/modules/es_bach_import/es_bach_import.module).
• Warning: simplexml_load_file(): ^ in es_import_parse_feed() (line 98 of /var/www/html/pages/alco.pro/public_html/sites/all/modules/es_bach_import/es_bach_import.module).
• Warning: Cannot modify header information - headers already sent by (output started at /var/www/html/pages/alco.pro/public_html/includes/common.inc:2861) in drupal_send_headers() (line 1551 of /var/www/html/pages/alco.pro/public_html/includes/bootstrap.inc).
• Error: Call to a member function attributes() on boolean in es_import_parse_feed() (line 99 of /var/www/html/pages/alco.pro/public_html/sites/all/modules/es_bach_import/es_bach_import.module).