Stripe Transaction Error on WooCommerce Site

I'm encountering a transaction error message on my WooCommerce site which uses Stripe as the payment gateway. This started happening out of the blue and I haven't changed any settings or performed any recent updates.

Ideal Skills and Experience:
- Expertise in WooCommerce troubleshooting
- In-depth knowledge of Stripe integration with WooCommerce
- Strong problem-solving capabilities
- Experience in diagnosing and fixing transaction error messages
- Excellent communication skills for providing updates and explanations

I need a professional who can swiftly diagnose and resolve the issue so my customers can make their purchases without any hitches.