Hey there! If you read and used one of my guides and found an issue, you can report it here. Be sure to report it as an issue and include the label. Use the bug report template to create a correct issue.
You can report any type of issues here from my XDA Forums guides. I have some guides about root, where you can report problems from the thread and issues when using the rooted device.
If you have problems that are able to be fixed, you can add the steps to fix it to your guide. To confirm this issue, I will try to reproduce the issue on my own device. When I've successfully reproduced it, I will add this issue to the list on the XDA thread and add the steps to fix it.
If you have problems that aren't able to be fixed, you must mention this in your issue. To confirm this issue, I will try to reproduce the issue on my own device. When I've successfully reproduced it, I will add this issue to the list on the XDA thread.