Hello, I have exactly the same issue as this (italian language):

www.jomsocial.com/forum/modules-plugins-...or-search-form#65162

Can't perform an advanced search from all the pages of the website (in the module on the left, "Ricerca Avanzata"):
bullban.com/_QQQ_/index.php/jomsocial/search/advancesearch_QQQ_

"The requested URL /_QQQ_/index.php/jomsocial/search/advancesearch_QQQ_ was not found on this server.
Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request."

but I can do it from a Profile: bullban.com/index.php/jomsocial/search/advancesearch

What's wrong?

Hi Fabio.

Please try this solution > www.jomsocial.com/forum/technical-issues...h-llink-broken#71002

Just tried (opened the file with notepad ++)... It didn't work :( same error
Edit: no, wait, it brings on the homepage when I click on "advanced search"...

could you check if this problem will persist on default English language and after implementing those fixes?

It seems to work in english

Some tips?

Hi Fabio.

Did you made modifications from post above, to your language also ?

Hi,
I did modifications in my site but not on the advanced search module...
Do you have admin and ftp access? I attached them when I opened the ticket.
The error still remains after celaring the cache of the browser:

Not Found

The requested URL /_QQQ_/index.php/jomsocial/search/advancesearch_QQQ_ was not found on this server.

Additionally, a 404 Not Found error was encountered while trying to use an ErrorDocument to handle the request.

Up, I do need help.

Hi Fabio.

I'm really sorry but I'm a little bit confused, so the fix works with english language, but it does't work with italian language? Could you correct?

It did not work even in english.
But I fixed it replacing

COM_COMMUNITY_TRY_ADVANCED_SEARCH="<a href=_QQQ_%1$s_QQQ_>Advanced Search</a>"

with

COM_COMMUNITY_TRY_ADVANCED_SEARCH="<a href=%1$s>Advanced Search</a>"

and NOT
COM_COMMUNITY_TRY_ADVANCED_SEARCH="<a href='%1$'>Advanced Search</a>"

just as you suggested but without ' '
Thanks