Invalid Email error

Hi,

When testing the plugin with the Test Donation feature, I’m unable to submit the test donation – I alsways get the error message “invalid email”, while the email address is correct.

I have tested this scenario with
– plugins deactivated,
– using another theme
but anything I try the issue persists.

And strangely it only happens when I’m logged in – in a logged-out status I can submit the test donation without any problem.

Thanks in advance for your help.