# Fatal error on activation If you encounter a fatal error on plugin activation, that means you are running an oldest version of the plugin, which can not work when official Disqus comments plugin is already active. Deactivate official plugin or update to the latest version of our plugin. Latest version of Disqus Conditional Load can work even when the official plugin is active. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.dclwp.com/general/fatal-error-on-activation.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.