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) VALUES ('8762d18a74cb7d6f09a0c9ede2071915', -1, 1714605129, 1714605129, '12dd5521', 20, 0)

Line : 158
File : sessions.php