After following the instructions on the following page : https://theme.co/docs/mailpoet
I get the this error :
Your MailPoet Premium plugin is incompatible with the free MailPoet plugin. Register your key or purchase one now to update the Premium to the latest version.
I found one MailPoet package to update but when I try to update I receive the following message :
MailPoet 3 Premium (New) The update failed : There is no update package (translate from french)
I have these versions installed :
Is there a solution to be able to get MailPoet working ? In my case, I can not work with the version installed because when I try to make changes in the setting page on MailPoet, I get a white empty screen.
Thanks for your help.