phpBB : Critical Error

Error creating new session

DEBUG MODE

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

INSERT INTO forum_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('1515d3de83d4e44143b6095ede981e72', -1, 1747719089, 1747719089, '126109ad', -1, 0)

Line : 158
File : sessions.php