I don't know why you have errors. I haven't seen anything on my end, no attempts for visits or anything. You might try shutting your whole 3DS down and starting it up again. Let me know if you'd like to keep trying.
Okay, I'll open my gate again once you've restarted your 3DS, or whatever else you want to try to fix the problem. You might also try looking up the error code on Nintendo's website to see what the problem might be. Let me know when you're ready to try again.
If you're still getting errors, you can put the error code into this part of Nintendo's website, and that should tell you what kind of problem it is, so that you can try to fix it.
I don't have any of Toby's items on hand right now, Marcy. But maybe I can help you fix your wifi connection. What error code are you getting when you try to visit another town?