in management multisites i have other subdomains and domains, all i have updated, only
one i have this error and not update
Error writing configuration file [/home/xxx/domains/xxx.com/subdomains/xxx2/public_html/configuration.php]
how i must to resolve

whilst another subdomain update all db, but receive this error
Unable to create the symbolic link [cgi-bin] -> [/home/xxx/public_html/cgi-bin].
Unable to create the symbolic link [error_log] -> [/home/xxx/public_html/error_log].

Me, too. Site Manager says "New extension present that could require a refresh. Edit and resave..." I edited and resaved the site. Returns the message "Error writing configuration file [/home/xxx/domains/xxxslavexxx.com/public_html/configuration.php]". Help?

For the "configuration.php" error, this mean that the file is read only and therefore can not be modified. So if you have to change the permission of the file to autorise the Read/Write
This probably mean that you have modified the "configuration.php" and that it is now protected.

For the cgi-bin and error_log this mean that you want to create a symbolic link for these files but in fact you already create a physical files (and not a link).
So you have to review the JMS Template rule and probably have to "ignore" those files.
You can have a similar error when the link is not the same.
So check if you have a link or a physical file and when you have a link that you have the correct value.
Otherwise, you will be reported of an inconsistancy between the symbolic link required and the current value (physical or wrong link).