[Solved] Update 12.0.2 -> 12.0.3 failing

Update is failing at “backup”

Initializing
Current version is 12.0.2.
Update to Nextcloud 12.0.3 available. (channel: "stable")
Following file will be downloaded automatically: https://download.nextcloud.com/server/releases/nextcloud-12.0.3.zip
Check for expected files
Check for write permissions
Enable maintenance mode
Create backup
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Running on Debian 9 654 Bit.

Config:
[~] # cat /var/www/nextcloud/config/config.php
<?php
$CONFIG = array (
‘instanceid’ => ‘xxx’,
‘passwordsalt’ => ‘xxx’,
‘secret’ => ‘xxx’,
‘trusted_domains’ =>
array (
0 => ‘xxx’,
1 => ‘HP-T5730’,
),
‘datadirectory’ => ‘/var/www/nextcloud/data’,
‘overwrite.cli.url’ => ‘https://xxx/nextcloud’,
‘dbtype’ => ‘mysql’,
‘version’ => ‘12.0.2.0’,
‘dbname’ => ‘nextcloud’,
‘dbhost’ => ‘localhost’,
‘dbport’ => ‘’,
‘dbtableprefix’ => ‘oc_’,
‘dbuser’ => ‘oc_Darkwing3’,
‘dbpassword’ => ‘xxx’,
‘memcache.local’ => ‘\OC\Memcache\APCu’,
‘logtimezone’ => ‘UTC’,
‘installed’ => true,
‘updater.release.channel’ => ‘stable’,
‘mail_smtpmode’ => ‘smtp’,
‘mail_from_address’ => ‘xxx’,
‘mail_domain’ => ‘xxx’,
‘mail_smtpauth’ => 1,
‘mail_smtphost’ => ‘mail.gmx.net’,
‘mail_smtpsecure’ => ‘tls’,
‘mail_smtpname’ => 'xxx,
‘mail_smtppassword’ => ‘xxx’,
‘maintenance’ => true,
‘theme’ => ‘’,
‘loglevel’ => 2,
‘updater.secret’ => ‘xxx’,
);

Please report here: https://github.com/nextcloud/updater/issues

Error was a changed hostname… after setting is in allowedhosts everything runs fine…