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 ('bb15c3b7972f0bd9bfb1c0c7ab9ad158', -1, 1711714780, 1711714780, '36ea06a7', 16, 0, 0)

Line : 172
File : sessions.php