swerb,

I have exactly the same problem, GC was working perfectly for over two years, then on the morning of 31st Oct, it stopped adding orders into the database, the orders are luckily in the GC system, but no record of them in ZenCart..

I checked mechant id, key, sandbox id, key, i checked no server permissions have been changed, checked all the files exist.

everything looks great, but it isn't saving to the database..

Anyone any ideas