500 Internal Server Error

Questions
1

Silverstripe Version:
4.12.1

Question:
I install SS in my website http://dev.inelektro.sk/ with installatron.com, but after install i have 500 Internal Server Error.
Problem will be something in .htaccess
.

Error log:
02/Dec/2023:11:50:14.888239 dev.inelektro.sk 46.34.226.83:0 core:error AH00124: Request exceeded the limit of 10 internal redirects due to probable configuration error. Use ‘LimitInternalRecursion’ to increase the limit if necessary. Use ‘LogLevel debug’ to get a backtrace.

Details of your query go here

### SILVERSTRIPE START ###
# Deny access to templates (but allow from localhost)
<Files *.ss>
    Order deny,allow
    Deny from all
    Allow from 127.0.0.1
</Files>

# Deny access to IIS configuration
<Files web.config>
    Order deny,allow
    Deny from all
</Files>

# Deny access to YAML configuration files which might include sensitive information
<Files ~ "\.ya?ml$">
    Order allow,deny
    Deny from all
</Files>

# Route errors to static pages automatically generated by SilverStripe
ErrorDocument 404 /assets/error-404.html
ErrorDocument 500 /assets/error-500.html

<IfModule mod_rewrite.c>

    # Turn off index.php handling requests to the homepage fixes issue in apache >=2.4
    <IfModule mod_dir.c>
        DirectoryIndex disabled
        DirectorySlash On
    </IfModule>

    SetEnv HTTP_MOD_REWRITE On
    RewriteEngine On
    RewriteBase '/public'

    RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]


    # Deny access to potentially sensitive files and folders
    RewriteRule ^vendor(/|$) - [F,L,NC]
    RewriteRule ^\.env - [F,L,NC]
    RewriteRule silverstripe-cache(/|$) - [F,L,NC]
    RewriteRule composer\.(json|lock) - [F,L,NC]
    RewriteRule (error|silverstripe|debug)\.log - [F,L,NC]

    # Process through SilverStripe if no file with the requested name exists.
    # Pass through the original path as a query parameter, and retain the existing parameters.
    # Try finding framework in the vendor folder first
    RewriteCond %{REQUEST_URI} ^(.*)$
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteRule .* index.php
</IfModule>
### SILVERSTRIPE END ###

My code is in public_html/_sub/dev/

2

If you are using the public folder (as it seems looking at your configuration), setting the DocumentRoot of your virtual host directly to that folder makes the job easier (and much more secure). In that case, your public/.htaccess should just be something like this (untested) and everything should work:

ErrorDocument 404 /assets/error-404.html
ErrorDocument 500 /assets/error-500.html

<IfModule mod_dir.c>
    DirectoryIndex disabled
    DirectorySlash On
</IfModule>

SetEnv HTTP_MOD_REWRITE On
RewriteEngine On

RewriteCond %{REQUEST_FILENAME} !-f
RewriteRule .* index.php
3

Have you tried getting support from installatron themselves?
On their (outdated) page for Silverstripe CMS they have a link for Installatron Auto-Installer Support.