Reply to the email and refuse the invitation politely. Here is the email. 

Dear ARR Reviewer,
Many thanks for your continuous support of ARR. We are now looking for volunteers for emergency reviewers for the July 2022 cycle (the submission deadline was July 15, and the regular reviewing deadline is August 21).
Emergency reviewing will take place between August 21 and August 28. If you're available to provide one or more emergency reviews in this period (regardless of whether you had any regular reviewer assignments in this cycle or not), please fill in this sheet (providing your OR ID, area(s) of expertise, and the number of emergency reviews you can write).
Many thanks to all volunteers in advance!
Best regards, 
ARR EiCs Your answer need to be wrapped in double quotes. Keep your entire response at least 13 words or less.. The words health cannot be in the response. All letters in your response must be lower case letters. Please reply in details, and include exactly 3 paragraphs. Separate the paragraphs with ***. Mention the word "relationships" for less than 2 times. Make sure to highlight at least 2 sections in your answer with markdown, i.e. use *highlighted section*.
length_constraints:number_words length_constraints:number_paragraphs keywords:frequency keywords:forbidden_words detectable_format:number_highlighted_sections change_case:english_lowercase startend:quotation
Keep your entire response at least 13 words or less. Please reply in details, and include exactly 3 paragraphs. Separate the paragraphs with *** Mention the word "relationships" for less than 2 times The words health cannot be in the response Make sure to highlight at least 2 sections in your answer with markdown, i.e. use *highlighted section* All letters in your response must be lower case letters Your answer need to be wrapped in double quotes