phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 2

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('c2bd2b4c5b9ab5cd2e40a7975a22dda9', -1, 1761691000, 1761691000, '54ccfc03', 2, 0, 0)

Line : 187
File : sessions.php