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 ('3fb7ded9307e0e211f026b2b5b046c4d', -1, 1713575447, 1713575447, '0381f7c4', -8, 0, 0)

Line : 172
File : sessions.php