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 ('1b55166c04e07123e2243719340165d2', -1, 1715203702, 1715203702, '12dbd075', 0, 0, 0)

Line : 189
File : sessions.php