phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in, session_admin) VALUES ('6663d9d3ec71d50ce2c5bcfa73bcaa6d', -1, 1715316814, 1715316814, '0385579c', 3, 0, 0)

Line : 189
File : sessions.php