Question2Answer fatal error:

A layer named series_layer already exists. Please check there are no duplicate plugins.

Layer 1: /home/enolejco/idea.enolej.com/qa-plugin/ashraf-series/series.php
Layer 2: /home/enolejco/idea.enolej.com/qa-plugin/ashraf-series1/series.php

Stack trace:

require() in index.php:10
require() in qa-index.php:47
qa_initialize_predb_plugins() in qa-base.php:65
loadPluginsBeforeDbInit() in qa-base.php:390
loadPlugins() in PluginManager.php:100
require_once() in PluginManager.php:91
qa_register_plugin_layer() in qa-plugin.php:13
qa_register_layer() in qa-base.php:666