Change Read More in Child theme

How about calling the 2nd function like this:

add_filter( 'the_content_more_link', 'modify_read_more_link_en' );
function modify_read_more_link_en() {...

??

Hata!: SQLSTATE[HY000] [1045] Access denied for user 'divattrend_liink'@'localhost' (using password: YES)