Hopefully Rozdoum (the vendor) or someone who knows will respond on here, but if they don't you might want to also try asking the question on their UserVoice site/issue tracker:
If you haven't found it already, there is a Contact support link toward the right of the page.
They also give an email address on their page here: https://marketplace.atlassian.com/vendors/773829 which you could try too.
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