ZMH Forms generate an error since the rename to ZMA

ZMH Forms generate an error since the rename to ZMA

I have a series of forms on my website. They were created in ZMH. Since the product was renamed to ZMA, the forms have started generating errors (screen-1540). I have updated the Wordpress plug-in but this hasn;t cured the problem.

How do I get rid of this error?

Many thanks

Steve