M2 Release Notes: https://github.com/algolia/algoliasearch-magento-2/releases
FIRST Please identify your version of the Magento extension. You can do that by typing algoliaConfig in your browser's console (see the screenshot below). If you are not on the current release of the extension, please upgrade to the latest version as it can resolve any issues you might be having.
Magento 2 Resources
FAQ: https://www.algolia.com/doc/integration/magento-2/troubleshooting/general-faq/?language=php
Troubleshooting Guide: https://www.algolia.com/doc/integration/magento-2/troubleshooting/technical-troubleshooting/?language=php
Last reviewed 29-04-22.