I was running 3.25 and was able to upgrade to 3.27. But when I try and upgrade 3.25 or 3.27 to 3.31(3.30 not available anymore) or higher, I get this error:
Fatal error: Your phpList version is older than two years. Please upgrade phpList before continuing.
Visit the support site if you need some help.
How do I resolve this? thanks.