Subscribers won’t export

Hi!

Tried exporting a couple of subscriber list, yielding a blank page and no export.

Noticed that a MailPoet update was waiting, so did that, with same result.

This has been working nicely for years on end (have been using MailPoet/Wysija for a great number of years).

Have noticed MailPoet 3 as an option, but have yet not migrated, especially since lists and designs wouldn’t follow upon migration. Then recently received reminder that Premium licence was about to expire, so paid that, and will of course expect continued support, based on that.

Site in question: https://hsmai.no

Now have following setup:

MailPoet2 2.7.13 with MailPoet 2 Premium 2.7.9 on top.

Cheers,
Jarle Petterson
On behalf of hsmai.no

The page I need help with: [log in to see the link]