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 ('b774e7a4a4cb46bd09f08a6bca745072', -1, 1748185942, 1748185942, '12bc74cd', 5, 0, 0)

Line : 190
File : sessions.php