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, session_admin) VALUES ('03cbb48a0062c2e2ef56bd35060ba5a2', -1, 1713955820, 1713955820, '038a8dca', -10, 0, 0)

Line : 187
File : sessions.php