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 ('65d66aefe5f9a7e01fd1b58bd3e2e2c2', -1, 1715067801, 1715067801, '12776b60', -10, 0, 0)

Line : 189
File : sessions.php