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 ('dd202437437e5dc6fe30255a26cf27c7', -1, 1713465418, 1713465418, '03935955', 7, 0, 0)

Line : 187
File : sessions.php