Hamish Thank you, I downloaded the latest version and got a different error. Executing CONTINUE button 1st attempt: was able to access Google play subscription page, but payment could not be completed. 2nd attempt: couldn't proceed to Google play page. Error message inside app "One or more of the arguments provided are invalid," followed by phone's internal error message in local language "Error occurred while acquiring data from server. PG-GEMF-01."
Mid Marlo: Hmm, that's a shame! However, this looks like a google play issue. I looked around and there are some issues online about PG-GEMF-01
Hamish It might be an issue with payment on my end. Thank you for the hint and for your support.
Hi Hamish, I just wanted to let you know that this error was finally resolved but only after I cancelled my subscription and waited until the trial period ended. My layperson guess is that the discount link could not override Google Play's subscription renewal payment that was already scheduled without discount. Thank you.
Latest version is ready for download and it should be working now!