Request Password

I have problems with restoring the password, after I installed mass_url.module and as a result of this 404 appeared.
I found out that the form of address was mistaken. In order to restore the password (user/password), you have to find the following lines:
else if ($url_username == ('password')) {
user_page();
return;
}
and to replace
user_page();
with
user_pass();