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 ('b5c6a4cc09ca27c141f4ade1f4140dd1', -1, 1711691731, 1711691731, '2cc63909', -7, 0, 0)

Line : 172
File : sessions.php