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 ('eae5d66d4ddd6ef19220a22b0e911ff4', -1, 1711620536, 1711620536, '2cdd2b58', -4, 0, 0)

Line : 172
File : sessions.php