Major errors just installed

Hi I seem to have major issues trying to complete an installation… just trying to update modules…

  1. Whoops\Exception\ErrorException
  • Sometimes, ‘hostname -f’, which doesn’t do any DNS lookups (which
    • is what we want) errors.
    • @return string Best guess at hostname
      public function getHostname() {
      // First, try 'hostname -f’
      exec(“hostname -f 2>/dev/null”, $output, $ret);
      if ($ret === 0 && !empty($output[0])) {
      // Hostname is valid

You’ve copied half of the useful information. Please take a screenshot.