Imagine your WordPress site is a ship navigating through digital waters. Functional errors are like hidden icebergs that can unexpectedly damage your vessel, making it hard or even impossible for visitors to navigate and complete actions like checking out or signing up. These issues can turn your welcoming digital destination into a frustrating obstacle course. Let’s explore what causes these disruptions and how you can avoid them for a smooth online journey.

What Are Functional Errors?

Functional errors are issues that break the functionality of your WordPress site. They prevent visitors from completing actions due to problems such as:

  • Broken forms or buttons that don’t respond as expected.
  • Form abandonment issues where users start but don’t complete forms, often due to errors or poor user experience.
  • Layout issues that disrupt the website’s appearance or usability across different devices.

What Causes Functional Errors?

Several factors can lead to the emergence of functional errors on your site:

  • Plugin Conflicts: With more than 60,000 plugins and more than 25,000 themes available, it’s nearly impossible for developers to test every combination. These conflicts can cause unexpected errors.
  • Device/Screen Size Bugs: A website might not function properly on all devices or screen sizes, leading to user experience issues for certain visitors.
  • Server Issues: Problems such as a too strict firewall, insufficient disk space, or inadequate memory can all interfere with your site’s functionality.
  • Configuration Errors: Incorrect or missing configurations, like an unconfigured payment gateway, can halt essential operations on your site.

How Can We Find These Errors?

Detecting these errors can be approached in several ways:

  • Manual Testing: Regularly testing your site on multiple devices and browsers after every plugin installation or upgrade can help identify issues. However, this process can be time-consuming and might not cover every scenario.
  • Staging Site Testing: Creating a staging site to test updates before applying them to the live site is another method. This approach can also be time-consuming and may involve challenges in syncing the live and staging environments.
  • Realtime User Session Monitoring (RUSM): A more efficient solution involves using a lightweight JavaScript tool that monitors every user session in real time. Using our innovative RUSM method, you can detect functional errors, enabling quick identification and resolution.


Addressing functional errors is critical for the health and usability of your WordPress site. BugMonitor offers a practical solution with its Realtime User Session Monitoring technology, enabling you to identify and rectify errors promptly. By starting with the free version of BugMonitor, you can ensure your site remains error-free and provides a seamless experience for all users. Don’t let functional errors hinder your site’s success—start using BugMonitor today and never miss an error again!