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 ('4a3256b67433f1adbaea2d3a31aa4e3b', -1, 1714244616, 1714244616, '0395e62c', -7, 0)

Line : 158
File : sessions.php