my website is not working I get this error 500 and will work seamlessly within hours

[arturako8367]

My website is not working I get this error and worked Site has not changed and it worked perfect.
But now comes the following: An internal server error. Please try your request again for a moment. The file permissions or directory is too high: the files must be 0644, the boards of 0755. Problem with. Htaccess. A syntax error in a CGI script.
I can do to repair or solve this problem greetings and thanks.

[calistoy]

There's no longer a server error, but you've got the wrong nameservers listed for your domain. Please change them to:

ns1.x10hosting.com
ns2.x10hosting.com

[arturako8367]

Domain correctly pointed out, and restored my site, continue 500 error. I can fix the problem? Thanks

[calistoy]

Clear your browser's cache. Your site is showing up just fine.

[arturako8367]

I apologize but what was viewed as a html for testing if another joomla system not working. web space continues to error 500 and do not understand because if everything worked right before. greetings and thanks