beautla3

I’ve disabled all plug ins and nothing has worked. I changed my theme back to my original one from when I first joined and I’m still not totally sure what .htaccess actually means? ive tried reading up but its all jargon to me and I cant wrap my head around any of it. How do I get to my sever error log? this is the message I get when I click on one of my blog posts as each one is now generating the same message over and over again;
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.
Please contact the server administrator, webmaster@beautifullymadebadlyfinished.com and inform them of the time the error occurred, and anything you might have done that may have caused the error.
More information about this error may be available in the server error log.
Additionally, a 500 Internal Server Error error was encountered while trying to use an ErrorDocument to handle the request.

Apache Server at beautifullymadebadlyfinished.com Port 80

I don’t even know how or who my host is. I just signed up so I could write what was swimming in my head, I don’t understand any of this and its really stressing me as ive paid for this domain name and I don’t want to abandon ship but I have no idea what to do or how to do it.