有nop 3.9 paypal 插件能用？

I am unsure if the PayPal plugins that are available in 3.9 still work. But you can download the full 3.9 from https://github.com/nopSolutions/nopCommerce/releases?page=4 and try the Paypal plugin available in the package

Paypal plugin comes out of the box in nopCommerce 3.90 so you can find plugin in your source code or download it from here.

https://github.com/nopSolutions/nopCommerce/releases/tag/release-3.90

Best Regards,
Faiz

Paypal plugin comes out of the box in nopCommerce 3.90 so you can find plugin in your source code or download it from here.

https://github.com/nopSolutions/nopCommerce/releases/tag/release-3.90

Best Regards,
Faiz

thanks!  
I don't know where the configuration went wrong, always prompting:
paypal:We're sorry, things don't appear to be working at the moment. Please try again later.



How to configure it correctly？！  Thank you very much！

I just did a test using PayPal Standard and v3.9 and everything worked as expected
I did not use Sandbox - just did a $1 transaction using Production settings
What version of the Plugin are you using - Your config view looks a little different to mine
I am using v1.35 of the Plugin - if you have an earlier version then probably update to the latest version
Check you config settings here for production
https://www.paypal.com/businessmanage/preferences/website