I have a conflict with a plugin I believe. Getting this error message 'Warning: Cannot modify header information – headers already sent by'. Seems to be a common issue on WP, but can't figure it out.
Client feedback
“"More Great work from Duy!"”
FAQ
Frequently Asked Questions
What was the "WordPress issue with site/plugin conflict" project about?
I have a conflict with a plugin I believe. Getting this error message 'Warning: Cannot modify header information - headers already sent by'. Seems to be a common issue on WP, but can't figure it out.
What WordPress services were provided in this project?
The main services provided included: Error Resolution. 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: ""More Great work from Duy!""
How much did this WordPress project cost?
This project was completed for $50.00. Project costs vary depending on complexity — from quick bug fixes ($50–$200) to larger customizations ($500–$5,000+). Contact Duy for a free quote.
What category does this project fall under?
This project falls under the "Error Resolution" category. Browse more 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 137+ completed projects, you can expect professional WordPress development.
Need a similar fix?
Start a project on Upwork or chat directly — typical response under 24 hours.