cannot acces stats on only one virtual host on server

Hi,

I have 4 VistualHosts on the server for 3 of them everything seems fine

rootdomain.tld/stats/index.html
user admin
pass passadmin config in ISPconfig

all ok

for one ( the #3 of 4 )
this gets into the "page not found" error

on the HDD I can find those files generated and current data in them
IF I move in an convenient place on other domain and change the ownership I can see them
only in the default location doesn't work

the server is CentOS 6.5 with ISPConfig3 Version: 3.0.5.4p6 and apache Server version: Apache/2.2.15 (Unix) Server built: Oct 16 2014 14:48:21

config in vhost files and in .htacccess and .htpasswd seems ok
I cannot find a way to catch where is something wrong
Any help to point in the rigt direction is welcomed

 

This is the tricky part

I have checked with diff against any of the working websites
diff /var/www/clients/client1/web1/web/.htaccess /var/www/clients/client3/web5/web/.htaccess
no differences

diff /var/www/clients/client1/web1/web/stats/.htaccess /var/www/clients/client3/web5/web/stats/.htaccess
3c3
< AuthUserFile /var/www/clients/client1/web1/web/stats/.htpasswd_stats
---
> AuthUserFile /var/www/clients/client3/web5/web/stats/.htpasswd_stats

which seems ok
I have checked the ownership and chmod of the .htaccess files and seems ok
if I check in the access_log it seems that I get to the file , but on web interface I receive the file not find error
I have moved the /htaccess and the associated pass file to a convenient location and it started to work
(without asking for pass - which is ok)
I have regenerated this files from ISPCOnfig interface ( sites > ...> statistics > just put again the pass )
an it works - it ask for pass and is ok
I have double checked the new file with old file ( via diff )
they are identical , same ownership, length, content ...
no clue why the error
but is solved