phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1406 Data too long for column 'session_admin' at row 1

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('7a0603477cbe09d10492c9c755f79035', -1, 1714049779, 1714049779, '1275ba5c', -11, 0, 0)

Line : 172
File : sessions.php