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 ('19e46bde8b8d70f9a0fa3d6df4146bc7', -1, 1714138007, 1714138007, '12da8aaa', -9, 0, 0)

Line : 172
File : sessions.php