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 ('c019259cd9cd2bdca3db68ca3a128da0', -1, 1713570243, 1713570243, '030f039a', -10, 0, 0)

Line : 187
File : sessions.php