Error Resolution
star star star star star 5.0/5.0

Error — not AuthorizeNet. Check your MD5 Setting.

terminal

Project Brief

PLEASE DO NOT CONTACT THE CUSTOMER DIRECTLY.

I have a woocommerce website which was made about 4 years ago.

This website is customized a lot. so I have not updated any plugins or Theme.
I have been using it fine until last Thursday.

After credit card information is submitted to the checkout, I get this error.

https://secure.authorize.net/gateway/transact.dll
Error — not AuthorizeNet. Check your MD5 Setting.

I talked to the Authorized.net and they said they do not support md5 setting since last Thursday.

I already tried other authorized.net plugins and updated ones, but all of them had comparability errors with the WP version and PHP version.

I updated WP and php versions and still did not worked. so I restored it to the original condition.

I think only way to fix this problem is fixing this plugin Authorize.net DPM Gateway 1.5.2 version.

How I Helped

In this project, I was hired to fix website issues and debug and fix errors for the client. Additional tasks included: restore websites from backup, solve complex website problems.

fix error restore problem

Immediate Results

  • check_circle Zero-downtime resolution during critical fix window
  • check_circle Fast turnaround with clear communication
  • check_circle Long-term stability and prevention of recurring issues

Frequently Asked Questions

What was the "Error — not AuthorizeNet. Check your MD5 Setting." project about?

This was a WordPress development project completed by Duy Nguyen.

What WordPress services were provided in this project?

The main services provided included: fix website issues, debug and fix errors, restore websites from backup, solve complex website problems. All work was completed by Duy Nguyen, a WordPress & WooCommerce expert with 10+ years of experience.

What did the client say about this project?

The client left a 5.0-star review: "Very Fast and Perfect! Easy to work with."

How much did this WordPress project cost?

This project was completed for $200.00. Project costs vary depending on complexity — from quick bug fixes ($50–$200) to larger customizations ($500–$5,000+). Contact Duy for a free quote on your project.

What category does this project fall under?

This project falls under the "Error Resolution" category. Browse more Error Resolution projects in the portfolio.

How can I hire Duy Nguyen for a similar project?

You can hire Duy Nguyen directly through Upwork for secure escrow payments, or use the "Hire Me" button on this page. With a 100% Job Success rate and 290+ completed projects, you can expect professional WordPress development.

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