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 ('9c8ced18069c41f7dc8ad973f2e7b5cc', -1, 1713463176, 1713463176, '12deb8a2', -2, 0, 0)

Line : 172
File : sessions.php