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 ('a1c54287a7d7847e1a2c60dd4e4656b6', -1, 1714115925, 1714115925, '038d0260', 20, 0)

Line : 158
File : sessions.php