ReplyWithHeader add-on stats page is not working/unavailable

Hello -

ReplyWithHeader add-on stats data is unavailable.
https://addons.thunderbird.net/en-US/thunderbird/addon/replywithheader/statistics/?last=30

I don’t see any data, kindly help. Thanks.

Regards,
Jeeva

Its been more than a month. No help received. Can someone help out on statistics issue?

Thanks,
Jeeva