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 ('34a32de81c9f0f14a5b3e42b8b06cf7a', -1, 1713587172, 1713587172, '039177c7', 3, 0, 0)

Line : 187
File : sessions.php