External connection problems

Good morning,
I need help I am configuring the nextcloud Platform with an FTP system to store the files, but I have several errors in the log and now the directory I created is gone, follows one of the errors:

PHP - stat(): stat failed for ftp://xxx:xxx@ de trabalho/Backup Pendrive black/Softwares/Programas de Rede/WebLCT_2015/WebLCT_2015/WebLCT/weblct/dc/client/style/productstyle/locale/en_US/dc/images/t2000 at /var/www/html/nextcloud/apps/files_external/lib/Lib/Storage/StreamWrapper.php#127

I’m using the Nextcloud 19.0.1 Platform
PHP 7.2

Help me please