I face error In bookmark system using colinlistview tree

Hello Koders,

I face the error that I cannot add more than 3 elements in colinlistview when I click on the bookmark.

See when I click on 1 song bookmark then it will add it on the bookmark screen
now when I click on 2 song bookmark then also it will add it to the bookmark screen
when I click on 3 song bookmark then also it will add it on the bookmark screen but when I will click on it then my song is not added why I don’t know I am stuck in these problems.

See my blocks sections:
This is my block of the Home section screen:

And this is my block of Bookmark system screen

Error of my home sections:

Error of bookmark system:

If you click do it on these two blocks, you will come to know the reason…

I see that you have taken too much painful blocks for bookmark… Why don’t you simplify it

Can you please tell me how can I simplify it with blocks??