phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('20890caf3f469237117dc42bb18f2cff', -1, 1751837143, 1751837143, 'd849d804', 37, 0, 0)

Line : 190
File : sessions.php