my site is www.szkielkoioko.pl it stopped working. There is just first page loading and you cannot go any further. always appears: The requested URL /tatry/ was not found on this server.

I have updated zenphoto to 1.4.6 and nothing.
I have deleted all albums and uploaded them againg and nothing.
I have changed theme for basic and nothing.

HELP!
I have been beed using zenphoto since some years and nothing like this ever happened

Probably a missing or incorrect .htaccess file or modrewrite is enabled although your server does not support it. Setup should have told about that. Re-run setup.

just some 3 months everything was working ok. my actual .htaccess:

RewriteEngine On
RewriteCond %{QUERY_STRING} ^rss-(.*)&
RewriteCond %{QUERY_STRING} ^rss-(.*)$
RewriteCond %{REQUEST_FILENAME} -d
RewriteCond %{REQUEST_FILENAME} -f [OR]
RewriteCond %{REQUEST_FILENAME} -d
RewriteRule ^(.*)/?$ index.php?album=$1 [L,QSA]
Order Allow,Deny
Deny from 198.143.189.226
Deny from 37.58.100.
Deny from 62.210.83.122
Allow from all
# htaccess file version 1.4.3.1;
# When Zenphoto requires changes to the rewrite rules:
# First make a copy of this file as 'oldhtaccess' in the zp-core folder so setup can test for unmodified files
# Update the above and the define in setup.php
IndexIgnore *
<IfModule mod_rewrite.c>
RewriteBase /
# Redirection for site updates--remove the comment crosshatches from the following rules
# "closed.html" in the plugins/site_upgrade folder is the target for the rewrites. You can change
# this file to suit your needs.
# RewriteRule ^index\.php$ plugins/site_upgrade/closed.html [NC,R=302,L]
# RewriteRule ^$ plugins/site_upgrade/closed.html [NC,R=302,L]
# End redirection for site updates
#Rewrite rules for replaced ?RSS-xxx query parameters
##### put no rules before this line #######
#rewrite rule for tinyURLs
#### Rewrite rule addition for search
#### Rewrite additions for zenpage
####
####
# Catch-all - everything else gets handled in PHP for compatibility.
</IfModule>

# htaccess file version 1.4.3.1;

As you can see in the file, the .htaccess file is from a much older Zenphoto version.
Delete the file and run setup again.
A new .htaccess file will then be created.

I deleted the file. and during the setup appears:

Mod_Rewrite check:
(negative)

every other point has a "green light"

.htaccess file [is empty or does not exist]
Warning!

Server seems not to be Apache or Apache-compatible, mod_rewrite may not be available.

Just continue. A .htaccess file will only be created if your server supports mod_rewrite.

But make sure the modrewrite option is not set if it is not supported.

sorry, but I am really not good in this stuff: where I should check that:
modrewrite option is not set???

Options > General > URL options > modrewrite

THX!!!!! WORKS FINE!!!