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 ('cd0c57cdd90f2c1d28bdcf7fbd0e628f', -1, 1716951126, 1716951126, '1276a716', -1, 0, 0)

Line : 187
File : sessions.php