Fehler in Api-Antwort:
array(2) {
  ["url"]=>
  string(54) "https://api.spar-mit.com/public/api/check_redirect_url"
  ["http_status"]=>
  int(500)
}
Response:

Curl_response Object ( [url] => https://api.spar-mit.com/public/api/check_redirect_url [http_status] => 500 [error_no] => 0 [error_msg] => [cache_info] => [decoded:Curl_response:private] => [plain_response:Curl_response:private] => Database Error

A Database Error Occurred

Unable to connect to your database server using the provided settings.

Filename: core/DB.php

Line Number: 222

)