Database Error!

Error: Field 'last_seen' doesn't have a default value
Query: INSERT INTO users (uid, password, ip_address, first_seen) VALUES ("5da5bfa4f3b324.69620559", "tvG16k58pttoQ7X7WlRwB2hrZ3Mz5PLM", "3.214.184.196", UNIX_TIMESTAMP())
File: /includes/database.class.php
Line: 98
Backtrace: