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 ('cf1d352311240f494ebc00546c2d9836', -1, 1715011958, 1715011958, '038f04b5', 3, 0, 0)

Line : 189
File : sessions.php