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 ('22ad50a95a8f7e7c2a1d1d889e10f14d', -1, 1714766934, 1714766934, '1276d2d5', 23, 0)

Line : 158
File : sessions.php