Strange. It will probably come back. So the issue of it coming up every couple minutes is because the kit must have some sort of resistance in it, that dips into the point where the car thinks it is okay. But since it's not enough most of the time, it keeps fluctuating in and out of this GOOD - NOT GOOD - GOOD - NOT GOOD cycle. That's why the message keeps coming up. Idk where you live, but it's starting to get colder and this car reacts very differently to resistors and electrical when it's cold. The original HID canceling kit I found that worked flawlessly ended up doing that once the winter came around. All summer, the probably Hundreds of people that bought these canbus adapters loved them, and said they worked great. Then winter came, and they said they were getting the message. It's because those resistors inside were strong, but once the cold hit, they were not as reliable for pleasing the car and it's mood swings of voltage when cold. I want to say the voltage is lower in the cold, causing the error to be more prevelant.
What might be happening with you is it's still showing up, but now it's one indefinitely. Check your "stored messages" in your dash. You should be able to click down to that section and it will either tell you what's wrong, or say no messages. My guess is it's on, and it's staying on, vs it reaching the GOOD status and then realizing, OH yeah this is not good, and then flashing the error over and over.
2014+ is annoying. The 13s don't ding. They just flash the message, but of course they added the ding to the message, which is a royal headache in this case.