1366 - Incorrect integer value: '' for column `jugglux_jstore`.`whos_online`.`customer_id` at row 1

insert into whos_online (customer_id, full_name, session_id, ip_address, time_entry, time_last_click, last_page_url) values ('', 'Guest', 'ai18p9t2usa5dks4u7drbjh946', '34.231.109.238', '1594109215', '1594109215', '/index.php/cat/c300_Einradfahren.html')

[XT SQL Error]