Bad Gateway (502) when calling Currency endpoint

Currency endpoint is throwing 502/Bad Gateway errors.

Request failed for https://apis.is returned code 502. Truncated server response: <html>
<head><title>502 Bad Gateway</title></head>
<body bgcolor="white">
<center><h1>502 Bad Gateway</h1></center>
<hr><center>nginx/1.14.0 (U... (use muteHttpExceptions option to examine full response)
