Having problem with Twitter login!

its really hard to know the exact reason for as there is many.. but it was reported that this could happen when the callback url is misconfigured or missing on dev.twitter.com

Thanks for your reply sir.. I didn’t placed any callback url on twitter. Can you suggest me, what can i place in the Callback field?

try https://metalmaggots.com

Thanks for your reply.. Now its work on that one.. But when i give Sign In to authorize my app.. Nothing happenes. It’s just staying at the same screen.. What can i do now?

https://postimage.org/image/mkaxr9l6n/

And it is not fetching the avatar of the user from social medias even though i gave the fetch option for it.. So please help me with it.. You can see that twitter error live at my website..

https://metalmaggots.com