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 ('a66dc4df2c56eb4a583e63a0f242b328', -1, 1713414593, 1713414593, '0391a46a', -1, 0, 0)

Line : 172
File : sessions.php