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 ('ac864e977e4c771ca487c6af7484dac6', -1, 1717372848, 1717372848, '03915118', 0, 0, 0)

Line : 187
File : sessions.php