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 ('0d6eb2aec9f3d4cceeee70cea6c6c9b3', -1, 1752878776, 1752878776, '54ccfc03', -1, 0, 0)

Line : 187
File : sessions.php