mod_rewrite to specific url in laravel

I'm using Laravel. I added RewriteRule ^(.*)$ public/$1 [L] to my htaccess file. Now I wanna redirect all URLs to the specific landing page. So I added RewriteRule (.*)$ /land [L,R=301] But my site does not load after this change. I couldn't handle it with [L , R] attributes.

Here is my code:

RewriteEngine On
RewriteCond %{REQUEST_URI} !^/[0-9]+\..+\.cpaneldcv$
RewriteCond %{REQUEST_URI} !^/[A-F0-9]{32}\.txt(?:\ Comodo\ DCV)?$
RewriteRule (.*)$ /newsletter [L,R=301]
RewriteRule ^(.*)$ public/$1 [L]`

is there any help?

via ali ajoudanian