Can't execute query

insert into `visitas` (`id`,`ip`,`referer`,`fecha`,`server`) values
        ('55435','107.20.5.156','','2015-07-29 04:36:28','a:31:{s:17:"PP_CUSTOM_PHP_INI";s:49:"/var/www/vhosts/system/bocasanasd.com/etc/php.ini";s:23:"PP_CUSTOM_PHP_CGI_INDEX";s:6:"module";s:9:"HTTP_HOST";s:18:"www.bocasanasd.com";s:14:"HTTP_X_REAL_IP";s:12:"107.20.5.156";s:20:"HTTP_X_FORWARDED_FOR";s:12:"107.20.5.156";s:21:"HTTP_X_ACCEL_INTERNAL";s:31:"/internal-nginx-static-location";s:15:"HTTP_CONNECTION";s:5:"close";s:20:"HTTP_ACCEPT_ENCODING";s:21:"x-gzip, gzip, deflate";s:15:"HTTP_USER_AGENT";s:39:"CCBot/2.0 (http://commoncrawl.org/faq/)";s:20:"HTTP_ACCEPT_LANGUAGE";s:28:"en-us,en-gb,en;q=0.7,*;q=0.3";s:11:"HTTP_ACCEPT";s:63:"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";s:4:"PATH";s:29:"/sbin:/usr/sbin:/bin:/usr/bin";s:16:"SERVER_SIGNATURE";s:63:"<address>Apache Server at www.bocasanasd.com Port 80</address>
";s:15:"SERVER_SOFTWARE";s:6:"Apache";s:11:"SERVER_NAME";s:18:"www.bocasanasd.com";s:11:"SERVER_ADDR";s:14:"213.60.254.238";s:11:"SERVER_PORT";s:2:"80";s:11:"REMOTE_ADDR";s:12:"107.20.5.156";s:13:"DOCUMENT_ROOT";s:39:"/var/www/vhosts/bocasanasd.com/httpdocs";s:12:"SERVER_ADMIN";s:21:"datatec@datatecsl.com";s:15:"SCRIPT_FILENAME";s:49:"/var/www/vhosts/bocasanasd.com/httpdocs/index.php";s:11:"REMOTE_PORT";s:5:"49723";s:17:"GATEWAY_INTERFACE";s:7:"CGI/1.1";s:15:"SERVER_PROTOCOL";s:8:"HTTP/1.0";s:14:"REQUEST_METHOD";s:3:"GET";s:12:"QUERY_STRING";s:136:"var1=!!MES%2520DEL%2520IMPLANTE%25C3%2583%25E2%2580%259A%25C3%2582%25C2%25A1%25C3%2583%25E2%2580%259A%25C3%2582%25C2%25A1&nar1=47&Page=1";s:11:"REQUEST_URI";s:138:"/?var1=!!MES%2520DEL%2520IMPLANTE%25C3%2583%25E2%2580%259A%25C3%2582%25C2%25A1%25C3%2583%25E2%2580%259A%25C3%2582%25C2%25A1&nar1=47&Page=1";s:11:"SCRIPT_NAME";s:10:"/index.php";s:8:"PHP_SELF";s:10:"/index.php";s:18:"REQUEST_TIME_FLOAT";d:1438137386.46700000762939453125;s:12:"REQUEST_TIME";i:1438137386;}')

MySQL Error: Duplicate entry '55435' for key 'PRIMARY'

Array
(
    [0] => Array
        (
            [file] => /var/www/vhosts/bocasanasd.com/httpdocs/index.php
            [line] => 84
            [function] => db_query
            [args] => Array
                (
                    [0] => insert into `visitas` (`id`,`ip`,`referer`,`fecha`,`server`) values
        ('55435','107.20.5.156','','2015-07-29 04:36:28','a:31:{s:17:"PP_CUSTOM_PHP_INI";s:49:"/var/www/vhosts/system/bocasanasd.com/etc/php.ini";s:23:"PP_CUSTOM_PHP_CGI_INDEX";s:6:"module";s:9:"HTTP_HOST";s:18:"www.bocasanasd.com";s:14:"HTTP_X_REAL_IP";s:12:"107.20.5.156";s:20:"HTTP_X_FORWARDED_FOR";s:12:"107.20.5.156";s:21:"HTTP_X_ACCEL_INTERNAL";s:31:"/internal-nginx-static-location";s:15:"HTTP_CONNECTION";s:5:"close";s:20:"HTTP_ACCEPT_ENCODING";s:21:"x-gzip, gzip, deflate";s:15:"HTTP_USER_AGENT";s:39:"CCBot/2.0 (http://commoncrawl.org/faq/)";s:20:"HTTP_ACCEPT_LANGUAGE";s:28:"en-us,en-gb,en;q=0.7,*;q=0.3";s:11:"HTTP_ACCEPT";s:63:"text/html,application/xhtml+xml,application/xml;q=0.9,*/*;q=0.8";s:4:"PATH";s:29:"/sbin:/usr/sbin:/bin:/usr/bin";s:16:"SERVER_SIGNATURE";s:63:"
Apache Server at www.bocasanasd.com Port 80
";s:15:"SERVER_SOFTWARE";s:6:"Apache";s:11:"SERVER_NAME";s:18:"www.bocasanasd.com";s:11:"SERVER_ADDR";s:14:"213.60.254.238";s:11:"SERVER_PORT";s:2:"80";s:11:"REMOTE_ADDR";s:12:"107.20.5.156";s:13:"DOCUMENT_ROOT";s:39:"/var/www/vhosts/bocasanasd.com/httpdocs";s:12:"SERVER_ADMIN";s:21:"datatec@datatecsl.com";s:15:"SCRIPT_FILENAME";s:49:"/var/www/vhosts/bocasanasd.com/httpdocs/index.php";s:11:"REMOTE_PORT";s:5:"49723";s:17:"GATEWAY_INTERFACE";s:7:"CGI/1.1";s:15:"SERVER_PROTOCOL";s:8:"HTTP/1.0";s:14:"REQUEST_METHOD";s:3:"GET";s:12:"QUERY_STRING";s:136:"var1=!!MES%2520DEL%2520IMPLANTE%25C3%2583%25E2%2580%259A%25C3%2582%25C2%25A1%25C3%2583%25E2%2580%259A%25C3%2582%25C2%25A1&nar1=47&Page=1";s:11:"REQUEST_URI";s:138:"/?var1=!!MES%2520DEL%2520IMPLANTE%25C3%2583%25E2%2580%259A%25C3%2582%25C2%25A1%25C3%2583%25E2%2580%259A%25C3%2582%25C2%25A1&nar1=47&Page=1";s:11:"SCRIPT_NAME";s:10:"/index.php";s:8:"PHP_SELF";s:10:"/index.php";s:18:"REQUEST_TIME_FLOAT";d:1438137386.46700000762939453125;s:12:"REQUEST_TIME";i:1438137386;}') ) ) )

This script cannot continue, terminating.