Plugin doesn’t automatically send pdf to costumer

Hello,

The plugin isn’t working for me.

I toggled all the options on but it doesn’t send pdf invoice email to costumer

https://i.postimg.cc/KvRJmkBH/1-C418-AC0-297-B-40-FF-A17-D-639437-AA5584.png

How to fix?

Thank you very much.

Best Regards

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