Certificate verify failed

[hacenator]

After installing and configuring I got this error:
SSL_connect returned=1 errno=0 state=SSLv3 read server certificate B: certificate verify failed (OpenSSL::SSL::SSLError)

Backtrace:
0 /usr/lib/ruby/1.8/net/http.rb 586 in connect' 1 /usr/lib/ruby/1.8/net/http.rb 586 inconnect'
2 /usr/lib/ruby/1.8/net/http.rb 553 in do_start' 3 /usr/lib/ruby/1.8/net/http.rb 548 instart'
4 /var/www/vendor/plugins/redmine_s3/lib/aws/core/http/net_http_handler.rb 44 in http_session_for' 5 /var/www/vendor/plugins/redmine_s3/lib/aws/core/http/net_http_handler.rb 27 inhandle'
6 /var/www/vendor/plugins/redmine_s3/lib/aws/core/client.rb 207 in make_sync_request' 7 /var/www/vendor/plugins/redmine_s3/lib/aws/core/client.rb 219 inretry_server_errors'
8 /var/www/vendor/plugins/redmine_s3/lib/aws/core/client.rb 202 in make_sync_request' 9 /var/www/vendor/plugins/redmine_s3/lib/aws/core/client.rb 342 inclient_request'
10 /var/www/vendor/plugins/redmine_s3/lib/aws/core/client_logging.rb 25 in `log_client_request'

[benasher44]

What options did you set in your s3.yml (not including access_key or secret_key)? Is your ca-bundle.crt file at the redmine_s3 plugin root folder?