config missing

[Yosef Sh]

after upgrade from 3.8 to 4.2.5 I got

Configuration: includes/config.php does not exist. Please fill out the data in config.php.new and rename it to config.php

when typing - http://www.sitename.com/index.php?styleid=27

i got forum page without graphics when typing - http://www.sitename.com/index.php

and blank page when typing - http://www.sitename.com

the config.php file is founded in include directory and database name, user, and pass set correctly.

[Wayne Luke]

Make sure you rename the file. If you are not showing extensions in Windows Explorer, it may have a hidden .txt extension on it.

Other than that none of the URLs are valid so we can't further diagnose your problem.

[Yosef Sh]

Which file i should rename? (I'm not expert )

[Mark.B]

The config.php file. Makes sure it it has been renamed as it has .new on the end by default. You need to remove that.

[Wayne Luke]

Which file i should rename? (I'm not expert )

As stated in the error message:
Configuration: includes/config.php does not exist. Please fill out the data in config.php.new and rename it to config.php

[Yosef Sh]

[Wayne Luke]

That is on the web server and not your local machine? Can't really tell anything useful from such a cropped image.

If it is on the server, then you need to ask your Web Hosting Provider why the PHP User cannot see/use the file. We cannot provide support for server configuration.