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 ('8dc750d75743b7d75b8cad85d9859f3a', -1, 1757769112, 1757769112, 'd849d8ad', 2, 0, 0)

Line : 187
File : sessions.php