Square Payment Module for Zen Cart [Support Thread]

[MrPix]

That could be part of the problem; there are significant updates to the core from v1.5.7 to v1.5.7c.

If you go to https://github.com/zencart/zencart/releases and click on the 'Assets' associated with the v1.5.7b and v1.5.7c releases, you'll find zip-files that contain only the changed files (no database changes required) to make the upgrade easier. You'll need to do two updates going from v1.5.7 to v1.5.7c, first from v1.5.7 to v1.5.7b then from v1.5.7b to 1.5.7c.

Thanks for the info, new to Zencart and not had to do any updates yet.

I did try to update, but after uploading the 1.5.7>1.5.7b files (after renaming the admin folder) I just get a blank screen (admin only) so I need to work out what needs to happen to rectify that I guess before proceeding.

I'll be in touch once I've worked the update(s) out and tested it with the new files.