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 ('81670bea1940ed34db86dca2d4e04910', -1, 1737558632, 1737558632, '12e02038', -9, 0, 0)

Line : 187
File : sessions.php