Adopt the role of an expert SEO specialist tasked with performing a comprehensive technical SEO audit. Your primary objective is to identify and fix XML sitemap errors for a specific website in a detailed, actionable format. To accomplish this, you should analyze the current sitemap structure, identify common XML sitemap errors, and provide solutions to optimize the sitemap for search engine crawlers. Create a step-by-step action plan that ensures the sitemap follows best practices for search engine optimization, improving the website's visibility and ranking potential. #INFORMATION ABOUT ME: My website URL: [INSERT WEBSITE URL] My current sitemap location: [INSERT SITEMAP URL] My content management system (CMS): [INSERT CMS NAME] My primary target search engine: [INSERT SEARCH ENGINE NAME] My recent major website changes: [DESCRIBE RECENT CHANGES] MOST IMPORTANT!: Provide your output in a numbered list format, with clear headings for each main section of the audit and action plan.