Hi, basically Acesef works ok, I use it mainly with Listbingo (I have plugin). The problem occurs, let's say 12 hours after deleting all SEF URLs, when amount of SEF url's getting bigger, some links give me blank page or initial broken text of the right page.

What can be cause of that?

Can you plz go to AceSEF=>URLs=>Duplicated URLs and check if you have any?

yes I do, also I disabled instant cache, hoping it's going to help

How many?
Are the links that give you blank page listed there?

a lot of them, about 1000. I am not sure it they are the same since I turned off instant cache, it's live website.
When I disabled instant cache, the website seems to work normal, maybe it's too early, we have to wait.
But there is another problem and I am not sure what causes it. After couple of hours I noticed that my website was almost down. When I run top command on my VPS I noticed that there are many zombie processes sth like php-cgi . Maybe it's Listbingo, maybe ACE maybe sth else.

Ok I got rid of php-cgi , I have not changed anything in acesef confing, the website was working ok for 2 days, then today I noticed it went blank (not 404 error) I even tried to set error logging into maximum but nothing happens only blank pages different browsers, os, computers, then I disabled acesef, did not help, then disabled joomla sef in global configuration, I still had problems, then I had an idea and disabled acesef plugin System - AceSEF and that was the cause, very strange just like that in the middle of the day, nothing was done at that time.
So sth is unstable here, looks like AceSEF + Listbingo

Hello,

Provide supperadmin account and sent support{at}joomace{dot}net

Best Regards

I just checked your website. Unfortunately I could not find any blank page. Plz give us some examples.

For right now it works ok. There was problem with configuration of my VPS and fast-cgi, I changed it to su_php. Also I think there was confilict with pligin called "System - contentstatic"

but

ACE slows down my website significantly, why?

Plz read these page carefully for the speed of websites:
www.joomace.net/support/docs/acesef/how-...-by-multiple-itemids
www.joomace.net/support/docs/acesef/how-...vent-duplicated-urls
www.joomace.net/support/docs/acesef/faq/...is-the-joomla-itemid

Rgrds.