[Fix error : 500] : Multiple laravel projects in shared hosting

laravel-[.htaccess]

<IfModule mod_rewrite.c>
    <IfModule mod_negotiation.c>
        Options -MultiViews
    </IfModule>

    RewriteEngine On
    
    ### Add two lines for fix error 500 ###
    Options -Indexes
    php_flag xcache.cacher 0
    #######################################

    # Redirect Trailing Slashes If Not A Folder...
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule ^(.*)/$ /$1 [L,R=301]

    # Handle Front Controller...
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteRule ^ index.php [L]

    # Handle Authorization Header
    RewriteCond %{HTTP:Authorization} .
    RewriteRule .* - [E=HTTP_AUTHORIZATION:%{HTTP:Authorization}]
</IfModule>

created file .htaccess in root of project, put this code into this file and 500 error not fixed. Someone know why it doesn't work?

I have tried above .htaccess codes but it is not ok to slove error 500

Hi all,
I have tested in different hosting.
php_flag is not authorized in .htaccess on some hosting. For fix, you can disable cache from php.ini or user.ini.
Sorry for the delay.
Thank you.