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 ('de104406e13b379a3f4ba2af8a00adc9', -1, 1737596857, 1737596857, '038ec999', 6, 0, 0)

Line : 187
File : sessions.php