Oh where oh where are my comments gone?

I just had this issue today and i have been searching for an answer but i couldnt find any.. However, i fixed it myself. Here is what i did:

open your comments.php (wp-content/themes/your-current-theme/comments.php) if you see its empty, then thats the problem. If you have some backup files or the original comments.php of your theme. You can get the codes there and copy the codes to the empty contents.php.

Or in short replace the current contents.php (coz its empty) with the original one. And that should fix it