Hello. i have 2 quastions. I have 6 HTTP errors in the webmaster tools. The detail is 4xx error. you can see example of this in this url: http://emetaheret.org.il/blog/763/%D7%9E%D7%90%D7%9E%D7%A8%D7%99%D7%9D/%D7%9E%D7%A7%D7%A8%D7%94-%D7%94%D7%99%D7%A8%D7%99-%D7%94%D7%9E%D7%96%D7%A2%D7%96%D7%A2-%D7%9E%D7%92%D7%A8%D7%9E%D7%A0%D7%99%D7%94-%D7%99%D7%9C%D7%93-%D7%A9%D7%A7%D7%99%D7%91%D7%9C-%D7% I don't know how to fix that. i think it's a broken link lying somewhere in another refering site. 2nd quastion is: after i cleaned up the mess, do i need to tell google to rescan my site or is it an automatic thing?
Those look like URL percentage encoded URLs (which is correct since Google formally demands that in XML sitemaps.) So while you may be using Hebrew UTF-8 characters in your HTML source (seeing it's ann .il domain), they might have been URL encoded depending on options in sitemap generator.
What I meant was that in your own HTML source, your broken link/code may not be URL encoded... and thus look differently in HTML source than what Google reported to you. E.g. you may have wrriten the link using UTF-8 Hebrew characters instead of using URL percentage encode URLs. I do not know what sitemapper etc. you use so hard to help beyond this. But quite possibly the sitemapper tool you use may be able to tell you about broken links and show you where you can find the broken links. Another reason for the errors reported by Google can also be that webmaster tools has not updated its error URL information.