Fatal error: Uncaught Error: Class "Icewind\SMB\KerberosAuth" not found in /var/www/html/nextcloud/apps/files_external/3rdparty/icewind/smb/src/KerberosApacheAuth.php:18 Stack trace: #0 {main} thrown in /var/www/html/nextcloud/apps/files_external/3rdparty/icewind/smb/src/KerberosApacheAuth.php on line 18