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 ('d8355d44ba2f0d14481d560d552dc59b', -1, 1713563496, 1713563496, '03804e29', -2, 0, 0)

Line : 187
File : sessions.php