chetan.diaspark on "Comment id not generating"

Hello All,

I am using a custom code to post comment Via Ajax and it was working fine. But after sometime it stops working and shows error :

Internal server error

My comment save successfully in comment table but it is not generating commentID for new comment. It shows error and when I refresh page again it shows that comment but with a blank commentID.

Please help me out for this.

Thanks much in advance.