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 ('2be5ce0e8a7c91d4eb779e47e2ba6b5a', -1, 1714163513, 1714163513, '031196a3', 7, 0)

Line : 158
File : sessions.php