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 ('78716422c38a0a5a80107c0c6702e55a', -1, 1715287539, 1715287539, '038f0973', 7, 0, 0)

Line : 189
File : sessions.php