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 ('3d7a72d3c1c7edc94ac722e5eacfe6d2', -1, 1714356805, 1714356805, '0389ab79', -7, 0)

Line : 158
File : sessions.php