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 ('587df55f3690f4aaa8929b2c6b1dc502', -1, 1715274339, 1715274339, '12ddde2f', 4, 0, 0)

Line : 189
File : sessions.php