Database Error!

Error: Field 'last_seen' doesn't have a default value
Query: INSERT INTO users (uid, password, ip_address, first_seen) VALUES ("5da5bc5a9bfea0.91410168", "stqxSHbO6H7j4EQGIa1NuTJ9LcpzBkWR", "3.214.184.196", UNIX_TIMESTAMP())
File: /includes/database.class.php
Line: 98
Backtrace: