I'm trying to make this plugin work in a bucket placed in Frankfurt, but no file is uploaded.
Enabling debug and logging, i find this error:
PHP Warning: S3::putObject(): [InvalidRequest] The authorization mechanism you have provided is not supported. Please use AWS4-HMAC-SHA256. in /.../osclass/oc-content/plugins/amazons3/S3.php on line 312
It looks like S3 signature is V2 and newest regions has only V4 signature.
It would be great if this plugin would get V4 compliance.
Thank you.