Mikhail Alferov

Error notifications help to immediately identify the causes of failures and quickly fix bugs so that the site runs smoothly and the business does not lose customers due to hidden errors.
If you are a developer, install the plugin to find out about specific errors or all errors in the PHP code, even if the error occurred in an unexpected place that could not be foreseen in advance.
The plugin allows you to configure the types of errors that you want to receive notifications about. Uncaught exceptions won’t break your site — they’re logged and made available for centralized custom handling via the <code>enot_exception_handler_should_exit</code> filter. Only real fatal errors stop the script, but you’ll still get full error details.
The notification will contain the type of error, the file name, and the line number where the error occurred or an uncaught exception was thrown, as well as a callback stack trace.
If you are the site owner, after installing the plugin, specify the email address of the developer who maintains the site in the plugin settings so that the plugin can start detecting and sending messages to the developer about serious errors that cause the business to lose orders or customers.
A notification with detailed information about the causes of the error will indicate to the programmer which plugin or theme caused the failure (which often goes unnoticed for a long time with automatic updates of plugins or themes), and the developer will fix the error before the failure is reported to customers.
It also helps to find out about critical errors even without access to the server logs or WordPress dashboard.
Note: The errors named *_NOTICE or *_WARNING are not too severe, but with others, the site breaks down and the user gets a negative experience.
<h4>Features</h4>
<ul>
<li>Customizable PHP error levels</li>
<li>Catch unhandled exceptions from try-catch blocks</li>
<li>Log stack traces, errors from @ operator, and JavaScript errors (Premium only)</li>
<li>Display user-friendly messages for critical PHP errors</li>
<li>Configurable email address for notifications</li>
<li>Multilingual support: RU, EN</li>
<li>Free updates to new versions (Premium only)</li>
<li>Error notifications via email</li>
<li>Error notifications via Telegram (Premium only)</li>
<li>JavaScript error alerts (Premium only)</li>
<li>Database error alerts (Premium only)</li>
</ul>

Error Monitor & Notifier

Receive notifications with details when PHP errors occur on your WordPress site.

Jack Arturo

This plugin sends you an email notification whenever a fatal error (or other error level, configurably) is detected on your site.
Unlike traditional uptime monitoring services, which will only notify you if your entire site is down, this plugin can notify you when an error is detected on any page or process on your site.
Automatic plugin and theme updates often introduce problems that you aren’t aware of until they’re reported by your visitors. Fatal Error Notify lets you address these issues as they occur and before they cause significant problems.

Fatal Error Notify

Great plugin

Thiss plugin is useful but won´t work on certain installs, although this could easily be fixed with some enhancements.

useful plugin but could be improved

I used Fatal Error Notify on a site that kept crashing and I couldn't find out what was going wrong.  The plugin emails the PHP error message and that helped me track down the issue. 

Can be a real lifesaver

Just came here to say that this is an amazing plugin and it's extremely helpful during troubleshooting.

keep up the good work!

Extremely helpful plugin

just discovered this little nugget and I'm very happy with it!

Awesome helper

Receive email notifications when errors occur on your WordPress site.

Error Monitor & Notifier vs Fatal Error Notify