There is no new version is released for QloApps for this PayPal module.
You can use the current version with suggested changes in the previous replies.
In case we update this PayPal module for the coming version, we will surely update you.
You can reply here in case of any queries or issues.
Regarding your first question, yes you can allow payments in customer currency by choosing the option Customer Currency for Paypal under currency restrictions.
And regarding payments being converted to AUD before payment, yes it is possible to make changes in the flow of the module to get the amount converted to any currency. If you are comfortable with programming you may make the changes yourself or may ask us to do it for you. If you want us to do it for you raise a ticekt at https://webkul.uvdesk.com/en/customer/create-ticket/.
What we have gathered so far is that you have tried migrating your website which is not a direct process but involves multiple things like changes in database and in the file system. We are happy that your issue has been resolved and hope that your system keeps working fine.
Please make sure you are entering your credentials correctly.
If issue still remains unsolved, please confirm that your Website contact email is from the same domain which you are trying to configure.
Go to Preferences > Store Contacts and then check under Contact Details for Shop Email.