Undefined in the books container instead of the books or the previous ones

[hasan-sh]

Describe the bug
undefined or an array of objects instead of the books!

To Reproduce
Steps to reproduce the behavior:

1. Go to https://liyasthomas.github.io/books/
2. Scroll down to Bestsellers
3. Click on the right arrow
4. See error

Expected behavior
More books, or the previous fetched books!

Screenshots

Desktop (please complete the following information):

• OS: [e.g. iOS]
• Browser [e.g. chrome, safari]
• Version [e.g. 22]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.

[liyasthomas]

Please give an explanation for your issue

[hasan-sh]

Please give an explanation for your issue

Sorry, for some reason everything I wrote, was deleted!!

[liyasthomas]

Issue has been identified. Will look into it and let you know the progress. Thanks for your concern.