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 ('ff48c0ba2f4e6e5d7f1dd153657f8c18', -1, 1715009943, 1715009943, '03154c00', -10, 0, 0)

Line : 189
File : sessions.php