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 ('5cd0c12115eafc765942f4d81266d5c8', -1, 1737438732, 1737438732, '12bc3e0a', 4, 0, 0)

Line : 187
File : sessions.php