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 ('c8ae77b0a88214b9dd29a2d97b90a9c5', -1, 1714658065, 1714658065, '1275c4d9', -1, 0)

Line : 158
File : sessions.php