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 ('cd4b0ad2367f4a11809d92a1a5e5ac9f', -1, 1715176666, 1715176666, '0390a174', 0, 0, 0)

Line : 189
File : sessions.php