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 ('0c436c673f0cb357120e9c68f2a4c774', -1, 1713291735, 1713291735, '0387c3f9', -10, 0, 0)

Line : 172
File : sessions.php