Error con "Valorar positivamente"

SQL ERROR [ mysqli ]

Out of range value for column 'user_agent' at row 1 [1264]

SQL

INSERT HIGH_PRIORITY INTO posts_votes (post_id, user_id, user_ip, user_agent, time, topic_id) VALUES (1728385671, 127749, 1396148778, 4030545313, 1331745617, 1747365)

BACKTRACE

FILE: includes/db/mysqli.php
LINE: 161
CALL: dbal->sql_error()

FILE: rpc.php
LINE: 343
CALL: dbal_mysqli->sql_query()

FILE: rpc.php
LINE: 41
CALL: vote_post()