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 ('3740edfd2da6318b8eadd9bfb6b6ef33', -1, 1713492399, 1713492399, '038a229e', 6, 0, 0)

Line : 187
File : sessions.php