Where and how do you get rid of this thing?

Not sure what you are asking, can you provide a screenshot or give more details.

(dtg bliss bliss doll.duf) comes up when you add Genesis 8 female as not found, its just annoying, you can  get rid of but that is a waste of time .

That's not happening for me here. Is it possible you resaved the Genesis 8 Female with that morph dialed into it?

I did a search and there appears to be more than one character with the name "Bliss" in it. None of which I have. There might be something in your morph data folder that is  causing it to load with G8F. 

It dos sound like a bad character/morph file. When you load a figure such as Genesis DS reads al of the back-end assets (the stuff in /data/daz 3d/Genesis 8/Female/ in this case) so that it knows what properties to add to the Parameters pane, which UV sets to add to the Surfaces pane, how they all relate/trigger each other and so on. I would guess that something has a link to a file that isn't there, and so you get the warning. If you check the log file (Help>Troubleshooting>View Log File) and search for Bliss you should find a more complete error message that will tell you exactly which file is triggering the warning, you an then either uninstall it, ask the maker for a fix, or try editing it to fix it yourself.

If you open the file under data in the morph file what is the value?

Sounds like a bad "Parent", each DSF file has a parent line that tells DS which figure it's meant to be attached to, if that is set wrong then you get a missing file error and the file wont be loaded.

Learn what the error messages in the log mean, as three of those will be pointing to the bad file.

I know I have the total write-up,/Volumes/Di2/online store/DTG/BilssG8/BlissDoll.Duf.

I've looked into the data file, and nothing is out of order that I can tell. In the log, there are two warnings, failed to load ( /Volumes/Di2/online store/DTG/BilssG8/BlissDoll.Duf), that is all. Now this is a new install, new hard Drive, new computer, etc.

What was the Value on the data file? It should be zero. If not the base will automatically load with the morph. 

I have seen(it's very rare though) the odd morph that does that.

Out of curiosity where did you get the morph? If it was from Daz this shouldn't be happening their QA is normally good. 

Is this the product we're talking about? https://www.renderosity.com/marketplace/products/124056/dtg-studios-bliss-for-g8f