Question2Answer fatal error:<p style="color: red">qa_register_plugin_module() can only be called from a plugin qa-plugin.php file</p><p>Stack trace:<p><code style="color: #999">require() in index.php:27</code><br><code style="color: #999">require() in qa-index.php:189</code><br><code style="color: #999">qa_output_content() in qa-page.php:53</code><br><code style="color: #999">qa_load_theme_class() in page.php:353</code><br><code style="color: #999">require_once() in format.php:2003</code><br><code style="color: #999">qa_register_plugin_module() in qa-theme.php:810</code><br>