Antivirus Fehler - No such file or directory

Hallo,

ich habe schon seit mehreren Nextcloud Versionen (aktuell 20.0.4 auf Ubuntu 20.04) Probleme mit dem Virenscanner.

Es werden massenhaft Dateien angezeigt als würde es Sie nicht geben beim Scannen, aber Sie sind dort vorhanden:

Folgende Meldungen habe ich im Protokoll:

Error	files_antivirus	RuntimeException: 

/var/www/nextcloud/apps/files_antivirus/lib/Item.php - line 85:
OCA\Files_Antivirus\Item->getFileHandle()

/var/www/nextcloud/apps/files_antivirus/lib/Scanner/ScannerBase.php - line 112:
OCA\Files_Antivirus\Item->fread()

/var/www/nextcloud/apps/files_antivirus/lib/BackgroundJob/BackgroundScanner.php - line 329:
OCA\Files_Antivirus\Scanner\ScannerBase->scan()

/var/www/nextcloud/apps/files_antivirus/lib/BackgroundJob/BackgroundScanner.php - line 115:
OCA\Files_Antivirus\BackgroundJob\BackgroundScanner->scanOneFile()

/var/www/nextcloud/lib/private/BackgroundJob/Job.php - line 52:
OCA\Files_Antivirus\BackgroundJob\BackgroundScanner->run()

/var/www/nextcloud/lib/private/BackgroundJob/TimedJob.php - line 59:
OC\BackgroundJob\Job->execute()

/var/www/nextcloud/cron.php - line 127:
OC\BackgroundJob\TimedJob->execute()

immer zeitgleich mit:

Error	PHP	Error: fopen(/var/www/nextcloud/data/Benutzer/files/Bescheinigung/Bescheinigung 20.06.2017 .pdf): failed to open stream: No such file or directory at /var/www/nextcloud/lib/private/Files/Storage/Local.php#355

<<closure>>
OC\Log\ErrorHandler::onError()

/var/www/nextcloud/lib/private/Files/Storage/Local.php - line 355:
fopen()

/var/www/nextcloud/lib/private/Files/Storage/Wrapper/Quota.php - line 160:
OC\Files\Storage\Local->fopen()

/var/www/nextcloud/apps/files_antivirus/lib/AvirWrapper.php - line 75:
OC\Files\Storage\Wrapper\Quota->fopen()

/var/www/nextcloud/lib/private/Files/Storage/Wrapper/Wrapper.php - line 300:
OCA\Files_Antivirus\AvirWrapper->fopen()

/var/www/nextcloud/lib/private/Files/View.php - line 1165:
OC\Files\Storage\Wrapper\Wrapper->fopen()

/var/www/nextcloud/lib/private/Files/View.php - line 1001:
OC\Files\View->basicOperation()

/var/www/nextcloud/lib/private/Files/Node/File.php - line 115:
OC\Files\View->fopen()

/var/www/nextcloud/apps/files_antivirus/lib/Item.php - line 191:
OC\Files\Node\File->fopen()

/var/www/nextcloud/apps/files_antivirus/lib/Item.php - line 85:
OCA\Files_Antivirus\Item->getFileHandle()

/var/www/nextcloud/apps/files_antivirus/lib/Scanner/ScannerBase.php - line 112:
OCA\Files_Antivirus\Item->fread()

/var/www/nextcloud/apps/files_antivirus/lib/BackgroundJob/BackgroundScanner.php - line 329:
OCA\Files_Antivirus\Scanner\ScannerBase->scan()

/var/www/nextcloud/apps/files_antivirus/lib/BackgroundJob/BackgroundScanner.php - line 115:
OCA\Files_Antivirus\BackgroundJob\BackgroundScanner->scanOneFile()

/var/www/nextcloud/lib/private/BackgroundJob/Job.php - line 52:
OCA\Files_Antivirus\BackgroundJob\BackgroundScanner->run()

/var/www/nextcloud/lib/private/BackgroundJob/TimedJob.php - line 59:
OC\BackgroundJob\Job->execute()

/var/www/nextcloud/cron.php - line 127:
OC\BackgroundJob\TimedJob->execute()

Woran könnte das liegen?

Danke und Gruß
Philipp