Remove Slug Custom post type error!

Help me? add product woocommerce?

Remove Slug Custom post type error!
.htaccess is not writable, please add following lines to complete your installation:
RewriteRule ^san-pham/(.+)$ /$1 [R=301,L]
RewriteRule ^product_variation/(.+)$ /$1 [R=301,L]
RewriteRule ^/(.+)$ /$1 [R=301,L]
RewriteRule ^shop_order_refund/(.+)$ /$1 [R=301,L]
RewriteRule ^/(.+)$ /$1 [R=301,L]
RewriteRule ^/(.+)$ /$1 [R=301,L]
RewriteRule ^/(.+)$ /$1 [R=301,L]
RewriteRule ^vc_grid_item/(.+)$ /$1 [R=301,L]
RewriteRule ^partner/(.+)$ /$1 [R=301,L]
RewriteRule ^testimonial/(.+)$ /$1 [R=301,L]
RewriteRule ^team/(.+)$ /$1 [R=301,L]
RewriteRule ^mc4wp-form/(.+)$ /$1 [R=301,L]

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