1406 - Data too long for column 'last_page_url' at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('0', 'Guest', '6f213448977f08af416223bc48850a76', '23.20.166.142', '1503168507', '1503168507', '/default.php?cPath=175&osCsid=1d1bf213a452348ff3e88137579ed27f&show=used')

[ERROR BASE DATOS]