Amazon S3 backup fails with Perl error

I am trying to backup a single VS to an Amazon S3 bucket and it is failing, giving me a Perl error which I don’t understand. I’m wondering if it thinks that it doesn’t have the right access credentials to Amazon or whether it is something else. Please can you help? The entire screen output is below:

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Starting backup of 1 domains to /console.aws.amazon.com/s3/home?region=eu-west-1&bucket=hambro&prefix=HambroBackup in Amazon S3 bucket https: …

HTTP/1.0 500 Perl execution failed Server: MiniServ/1.831 Date: Thu, 19 Jan 2017 06:21:55 GMT Content-type: text/html; Charset=iso-8859-1 Connection: close
Error - Perl execution failed

File does not exist: Can’t connect to mail.net2air.co.s3-website-eu-west-1.amazonaws.com:443 (Connection timed out) LWP::Protocol::https::Socket: connect: Connection timed out at /usr/share/perl5/LWP/Protocol/http.pm line 51. at S3/ListBucketResponse.pm line 26
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I am having nearly the same problem. Running GPL Version 5.05. Error appears when I try to list the S3 buckets or run a scheduled backup. The backups all ran fine until a few days ago. If memory serves there were some recent package updates for SSL packages, but I have to check the logs to see.

Here is my version of the error message:
HTTP/1.0 500 Perl execution failed Server: MiniServ/1.831 Date: Thu, 9 Feb 2017 09:23:18 GMT Content-type: text/html; Charset=iso-8859-1 Connection: close
Error - Perl execution failed
File does not exist: Can’t connect to s3.amazonaws.com:443 LWP::Protocol::https::Socket: getaddrinfo: Name or service not known at /usr/share/perl5/LWP/Protocol/http.pm line 41. at S3/ListAllMyBucketsResponse.pm line 27.