Hi, I'm sorry for the delay.

Downgrading is not officially supported, but because there was no changes in database structure between 3.9.9 and 3.9.10, you should be able to downgrade by just replacing the files on your server with the ones from older JoomSEF package.

Of course make a backup of your website prior to doing this.

Then extract the JoomSEF ZIP package with 3.9.9 version somewhere on your computer, and copy and replace the following files:
all files from directory admin in the package to directory /administrator/components/com_sef on your server
all files from directory site in the package to directory /components/com_sef on your server
file sef.xml from the package to directory /administrator/components/com_sef on your server
all files from directory admin/plugin to directory /plugins/system on your server

Hi,

can't download the 3.9.9 version on my artio'z account how to got it?

Regards.

We don't offer older paid versions for download. Please contact me at This e-mail address is being protected from spambots. You need JavaScript enabled to view it with the reference to this forum topic and I'll send you the package.