Import runs on error in class-mediafromftp.php

“Media from FTP” got a critical Error while uploading a file.
Besides, a log file cannot be written, even when checking the corresponding box in Settings. Do you have an idea why the import fails?

WordPress-Version 5.3.2
Plugin: Media from FTP (Version 11.04)
PHP-Version 7.3.14

Error details:
==============
Ein Fehler vom Typ E_ERROR wurde in der Zeile 1490 der Datei /usr/www/users/mossdg/wp-content/plugins/media-from-ftp/inc/class-mediafromftp.php verursacht. Fehlermeldung: Uncaught Error: Call to a member function getDocNamespaces() on bool in /usr/www/users/mossdg/wp-content/plugins/media-from-ftp/inc/class-mediafromftp.php:1490
Stack trace:
#0 /usr/www/users/mossdg/wp-content/plugins/media-from-ftp/req/class-mediafromftpadmin.php(1700): MediaFromFtp->author_select(‘/usr/www/users/…’)
#1 /usr/www/users/mossdg/wp-includes/class-wp-hook.php(288): MediaFromFtpAdmin->medialibrary_import_page(”)
#2 /usr/www/users/mossdg/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters(”, Array)
#3 /usr/www/users/mossdg/wp-includes/plugin.php(478): WP_Hook->do_action(Array)
#4 /usr/www/users/mossdg/wp-admin/admin.php(254): do_action(‘media-from-ftp_…’)
#5 {main}

Error details more detailed
==============
Warning: simplexml_load_string(): Entity: line 1: parser error : Start tag expected, ‘<‘ not found in /usr/www/users/mossdg/wp-content/plugins/media-from-ftp/inc/class-mediafromftp.php on line 1487

Warning: simplexml_load_string(): PK in /usr/www/users/mossdg/wp-content/plugins/media-from-ftp/inc/class-mediafromftp.php on line 1487

Warning: simplexml_load_string(): ^ in /usr/www/users/mossdg/wp-content/plugins/media-from-ftp/inc/class-mediafromftp.php on line 1487

Fatal error: Uncaught Error: Call to a member function getDocNamespaces() on bool in /usr/www/users/mossdg/wp-content/plugins/media-from-ftp/inc/class-mediafromftp.php:1490 Stack trace: #0 /usr/www/users/mossdg/wp-content/plugins/media-from-ftp/req/class-mediafromftpadmin.php(1700): MediaFromFtp->author_select(‘/usr/www/users/…’) #1 /usr/www/users/mossdg/wp-includes/class-wp-hook.php(288): MediaFromFtpAdmin->medialibrary_import_page(”) #2 /usr/www/users/mossdg/wp-includes/class-wp-hook.php(312): WP_Hook->apply_filters(”, Array) #3 /usr/www/users/mossdg/wp-includes/plugin.php(478): WP_Hook->do_action(Array) #4 /usr/www/users/mossdg/wp-admin/admin.php(254): do_action(‘media-from-ftp_…’) #5 {main} thrown in /usr/www/users/mossdg/wp-content/plugins/media-from-ftp/inc/class-mediafromftp.php on line 1490

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