Internal server error 500

Hello

Sorry for the late anser.
Here you can see what I have done:

Here the .hataccess ( before trying to actiuvate the plugin)

AddHandler x-httpd-php7-3 .php
# AddHandler x-httpd-php7-2 .php
# AddHandler x-httpd-php5-6 .php
# BEGIN WordPress

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ – [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>
# END WordPress

Here the error I got when I tried to activate the plugin
Internal Server Error
The server encountered an internal error or misconfiguration and was unable to complete your request.

as soon as I tried to activate the plugin I got this message

Please contact the server administrator at [email protected] to inform them of the time this error occurred, and the actions you performed just before this error.

More information about this error may be available in the server error log.`

# BEGIN W3TC Browser Cache
<IfModule mod_deflate.c>
        AddOutputFilterByType DEFLATE 
    <IfModule mod_mime.c>
        # DEFLATE by extension
        AddOutputFilter DEFLATE js css htm html xml
    </IfModule>
</IfModule>
<FilesMatch "\.()$">
    FileETag MTime Size
    <IfModule mod_headers.c>
        Header set Pragma "public"
        Header append Cache-Control "public"
         Header unset Set-Cookie
    </IfModule>
</FilesMatch>
<FilesMatch "\.()$">
    FileETag MTime Size
    <IfModule mod_headers.c>
        Header set Pragma "public"
        Header set Cache-Control "max-age=3600, public"
    </IfModule>
</FilesMatch>
<FilesMatch "\.()$">
    FileETag MTime Size
    <IfModule mod_headers.c>
        Header set Pragma "public"
        Header append Cache-Control "public"
         Header unset Set-Cookie
    </IfModule>
</FilesMatch>
<FilesMatch "\.()$">
    <IfModule mod_headers.c>
         Header unset Last-Modified
    </IfModule>
</FilesMatch>
<IfModule mod_headers.c>
    Header set Referrer-Policy "no-referrer-when-downgrade"
</IfModule>
# END W3TC Browser Cache
# BEGIN WordPress

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

So, it seems that as soon as I tried to activate the plugin I got the error.
Thank you so much

• This reply was modified 4 years, 8 months ago by mcaso.

Hi,
Now when I tried to see the site I see the 500 eror.
I was able to log in into the admin in WP but when I went to see the plugins I got the 500 error.
I checked the .htaccess and I see:

AddHandler x-httpd-php7-3 .php
# AddHandler x-httpd-php7-2 .php
# AddHandler x-httpd-php5-6 .php
# BEGIN W3TC Browser Cache
<IfModule mod_deflate.c>
        AddOutputFilterByType DEFLATE 
    <IfModule mod_mime.c>
        # DEFLATE by extension
        AddOutputFilter DEFLATE js css htm html xml
    </IfModule>
</IfModule>
<FilesMatch "\.()$">
    FileETag MTime Size
    <IfModule mod_headers.c>
         Header unset Set-Cookie
    </IfModule>
</FilesMatch>
<FilesMatch "\.()$">
    FileETag MTime Size
</FilesMatch>
<FilesMatch "\.()$">
    FileETag MTime Size
    <IfModule mod_headers.c>
         Header unset Set-Cookie
    </IfModule>
</FilesMatch>
<FilesMatch "\.()$">
    <IfModule mod_headers.c>
         Header unset Last-Modified
    </IfModule>
</FilesMatch>
<IfModule mod_headers.c>
    Header set Referrer-Policy "no-referrer-when-downgrade"
</IfModule>
# END W3TC Browser Cache
# BEGIN WordPress

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

I changed it to

AddHandler x-httpd-php7-3 .php
# AddHandler x-httpd-php7-2 .php
# AddHandler x-httpd-php5-6 .php
# BEGIN WordPress

<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

And now I could enter.
But if I go again to the plugins the got the 500 error and the .hataccess is modify again, I think I will need to deactivate the plugin but from the cpanel in order to reinstall againg.
What do you think? Can you please assit me with that?

Bye for now
Marcela