Your biggest hurdle in affiliate marekting blogging and how you overcame it

Recently I changed my blog theme because the old one was extremely slow. Then after I solved that problem, another one cropped up.
All my direct, organic and social traffic disappered. Attempts to post here at WA for some help proved futile. I searched online but couldn't get the appropriate answer. Finally I went into Google Analytics and contacted Google. In days I had help.
They asked me to create a Google Analytics property for my website. Then set up a Tracking ID and global site tag. When you locate two 2 items, WA Help will assist you to set them up on your blog header. Two other things were to set up tags absent from my blog and a new goal in Google Analytics.
I began seeing traffic in the follwoing minutes.
This is something I think will not only interest but also help a lot of folks in that same situation. But I think posting about that sole situation or only about my situations wouldn't sound so good.
This is where I need you folks.
What difficult situations or snags did you go through to create your affiliate markting blogging journey? And how did you solve them?
This doesn't need to be anything earth shattering or long. Just state the problem and the solution. Do in such a way that will help someboy else.
I'm going to publish it on my blog as a roundup post. So give your names and your blog urls.
Since self promotion is not allowed here, you could PM me the info or ask for my email address to send it there.
I hope many of you guys will participate. Thank you for the WA love.