Twitter Card Validator Error

Hello,

My site has been running for a while and when posting a link to social media the cards worked perfectly. However, I recently noticed that while Facebook continues to work, Twitter cards are no longer showing up.

I checked https://cards-dev.twitter.com/validator and received the following:
ERROR: Fetching the page failed because the response is too large.

The URL I’m testing is our front page: https://overheadgames.com/

When checking with Facebook’s open graph debugger all info appears to be correctly present:
https://developers.facebook.com/tools/debug/?q=https%3A%2F%2Foverheadgames.com%2F

Any ideas on why Twitter is not able to display the card correctly?

Thank you for your help in advance!