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 ('3b4b8bbfda4e4347236900aa69fd8186', -1, 1713557755, 1713557755, '038f17b0', -2, 0, 0)

Line : 172
File : sessions.php