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 ('dcb9e5241d1e3a744e400392af8e9671', -1, 1737659514, 1737659514, '031767cb', 10, 0, 0)

Line : 187
File : sessions.php