Installation nextcloud 13.0.1 postgresql zeigt

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Next Doctrine\DBAL\Driver\PDOException: SQLSTATE[42P01]: Undefined table: 7 FEHLER: Relation »oc_appconfig« existiert nicht
LINE 1: SELECT * FROM “oc_appconfig”

debian stretch aktuell
php 7.0
php -m
[PHP Modules]
bz2 calendar Core ctype curl date dom exif fileinfo filter ftp gd gettext hash iconv igbinary imagick intl json libxml mbstring mcrypt mysqli mysqlnd openssl pcntl pcre PDO pdo_mysql pdo_pgsql pgsql Phar posix readline redis Reflection session shmop SimpleXML sockets SPL standard sysvmsg sysvsem sysvshm tokenizer wddx xml xmlreader xmlwriter xsl Zend OPcache zip zlib

$CONFIG = array (
  'instanceid' => '',
  'passwordsalt' => '',
  'secret' => '',
  'trusted_domains' => 
  array (
    0 => '',
    1 => '',
  'datadirectory' => '/data',
  'dbtype' => 'pgsql',
  'version' => '',
  'dbname' => 'nextcloud',
  'dbhost' => 'postgresql-host',
  'dbport' => '5432',
  'dbtableprefix' => 'oc_',
  'dbuser' => 'nextcloud',
  'dbpassword' => 'XXXXXXXXX',
  'installed' => true,
  'default_language' => 'de',
  'force_language' => 'de',
  'memcache.local' => '\OC\Memcache\Redis',
  'redis' => array(
       'host' => '/var/run/redis/redis.sock',
       'port' => 0,
  'memcache.locking' => '\OC\Memcache\Redis',
  'mail_from_address' => 'root',
  'mail_smtpmode' => 'php',
  'mail_smtpauthtype' => 'PLAIN',
  'maintenance' => false,
  'theme' => '',
  'loglevel' => 0,

Does oc_appconfig actually exist? Did the installation yield any error messages?

find nextcloud/ | grep -i oc_appconfig

nothing found

No error messages

oc_appconfig should be a table in the nextcloud database, not a file/directory. Afaik, it is created during installation, then Nextcloud is creating the database and its tables. Are you sure you are using an external database server? If not, postgresql-host probably should be localhost.

You should check your logs when the installation was done or maybe run the installation again and monitor logs or error messages. I guess something went wrong when accessing the database.

Apr 21 14:26:05 postgres postgres[17409]: [4-1] 2018-04-21 12:26:05 GMT
LOG: Verbindung autorisiert: Benutzer=nextcloud Datenbank=nextcloud SSL
an (Protokoll=TLSv1.2,
VerschlĂŒsselungsmethode=ECDHE-RSA-AES256-GCM-SHA384, Komprimierung=aus)
Apr 21 14:26:05 postgres postgres[17409]: [5-1] 2018-04-21 12:26:05 GMT
FEHLER: Relation »oc_appconfig« existiert nicht bei Zeichen 15

Problem solved. Old configfile config.php must realy empty for a new installation.