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 ('9f4f2764e6e73a0d8e47bc4a781a309d', -1, 1713562014, 1713562014, '12de73b3', -4, 0, 0)

Line : 172
File : sessions.php