If you are not receiving registration email to confirm your account please send us a email with your username. Make sure you send the email from the email you used when signed up so we can manually verify your account. Send the email to firstname.lastname@example.org - Alternative is to send your username and email to FloydN on discord. Our discord server can be found at the bottom of the page. Sorry for the trouble.
post your log file here.
check for any errors in it and see where the cause is.
the error will tell you what is wrong and what needs to be changed.
Be sure you do not have any PV Industries / 4x mods in that folder and also any other maps.
post pictures of the screen shot showing the GC menu that there is product in there,
Be sure you own the land(s) the entire building is sitting on.
Make sure it isn't too close to another building.