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 ('6c39e99f644f2ada03211dc9e9f188d7', -1, 1737655696, 1737655696, '12742886', -9, 0, 0)

Line : 187
File : sessions.php