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 ('15d00fa835f00c7a409bc8780a37b7c6', -1, 1715040818, 1715040818, '038556ac', -4, 0, 0)

Line : 189
File : sessions.php