phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('6b4c9d8f332db6d7609f4be8c513b107', -1, 1717367872, 1717367872, '0390de31', 0, 0, 0)

Line : 187
File : sessions.php