Contribution form issue: cannot submit donation
Stripe uses javascript to submit the credit card credentials to the stripe server (so that they're never handled by the CiviCRM server). The console is showing that it's unable to do that because of javascript errors.

A browser may or may not stop processing if it encounters javascript errors, it depends on the browser/settings.

On your referenced page, it's CiviCRM loading the jquery.min.js file, so that suggests it's a purely CiviCRM issue - there's likely some Civi or extension javascript running that's trying to execute some jquery and getting an error.

As per Pete's comment, I'd start with thinking about what has changed since it was last working (e.g. a CiviCRM or extension update, a change with WordPress, etc.).