Hi KTServices ,
Thanks for your post.
That's not possible. My apologies for that.
Are you using the same versions of ATUM plugins on both sites? Are all of them up to date? And Woocommerce?
Anyway, you only included the call stack in your image, you omitted the error. We can't know what is happening without it. Please include it too.
Best Regards,
José Andrés