Sounds like you have the "new" cPanel....

So.... delete the add-on/sub-domain once again.... (verify) .... and re-create as shown above, being sure in cPanel to add the ".com"
>> PRINT OUT the "Confirmation Page" which will come in handy to show you time and again how the path is structured, and how to access your directory.

Also, when publishing, be sure to add the ".com" to the BV Publish Dialog box, otherwise the true path will not be identified and followed (thus, Error messages).