Replies: 0
I upgraded WP to 5.5 and the Mailpoet plugin to 3.49.1 from 3.47.1. The result was that the Mailpoet link was still in the main nav of WP with all of its links…but all of the data, emails, forms, lists, subscriptions were totally blank.
I had to revert to the old version of WP and of Mailpoet.
Can you let me know how I can go ahead with the upgrades without losing everything. Using Windows 10.