How can a beginner effectively troubleshoot PHP module errors?

To effectively troubleshoot PHP module errors as a beginner, you can start by checking if the module is installed and enabled in your PHP configuration file (php.ini). If the module is missing or disabled, you can enable it by uncommenting the corresponding line in the php.ini file and restarting your web server.

```php
;extension=module.so
```

In the above code snippet, replace "module.so" with the name of the PHP module you want to enable. Uncommenting this line will enable the specified module in your PHP configuration. Remember to restart your web server after making changes to the php.ini file for the changes to take effect.