Does this module still work with zencart 2.0 running php 8.3? I installed it on my newly updated site and it seems to have made it go crazy - all links now point to one product and site unusable. I made a backup test site and installed all the other mods one by one and the only one still to be installed is Square Webpay, which makes me suspicious of it being the culprit.
I need Square rather urgently as it's the most popular payment choice and I have to pay off a loan through Square via payments received, but I'm dreading installing it and messing everything up again due to incompatibility or such if it's just a case of not being able to cope with php8.3 (minimum php is 8 for the new ZC 2.0, but it didn't make a difference when i tried it as a solve)

PS even if I can't get it working on 2.0, thanks for all the hard work you've done on it so far, Carl!