phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('61ef2b9be5db4f197b7121a1fb4c3533', -1, 1713473885, 1713473885, '1274efc3', -1, 0, 0)

Line : 187
File : sessions.php