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 ('80b6cce2cf65a1d68ad5d616a9f05f7f', -1, 1711677525, 1711677525, '22ccb194', -4, 0, 0)

Line : 172
File : sessions.php