phpBB : Critical Error

Error creating new session

DEBUG MODE

SQL Error : 1062 Duplicate entry '-1' for key 'session_user_id'

INSERT INTO phpbb_sessions (session_id, session_user_id, session_start, session_time, session_ip, session_page, session_logged_in) VALUES ('b5375181163bea99de15bbfc7a9c65be', -1, 1714589527, 1714589527, '0390112d', 19, 0)

Line : 158
File : sessions.php