Earnings can be affected by many factors.
I would suggest taking a look at this guide on trouble shooting EPMV changes on the site:
If you have came back to Ezoic in the time you have been away if you have made any changes to the site this can affect placeholder setup so i would suggest checking out your placeholder setup and ensure it is optimised:
1.) If your site is built with WordPress -> Ezoic WordPress Plugin
If you have a WordPress site, please be sure to install the Ezoic WordPress plugin. This plugin includes functionality to add placeholders automatically to your site.
Once you have the plugin installed, go to your WordPress Settings, select Ezoic and then update the Ad Settings to add placeholders. You will want to enable the option to Generate Default Placeholders.
More details are available on this page: https://support.ezoic.com/kb/article/setting-up-ad-tester-placeholders-with-the-ezoic-wordpress-plugin
2.) If your site is NOT built with WordPress -> Ezoic Chrome Extension
Alternatively, if your site is not built with WordPress, you can view your current set-up and add more placeholders with the Google Chrome extension for Ezoic Ad Tester.
You can download this browser extension for free directly from the Chrome Web Store (-> https://chrome.google.com/webstore/detail/ezoic-ad-tester/nbccjeeblefkmoohdiipbghgikopimnd?hl=en).
Please be sure to review and add placeholders to your top landing pages (-> https://analytics.ezoic.com/reports/content/landingPages). When you create new ad placeholders, they will automatically translate to similar pages of your site.
The Chrome extension is easy to use and does not require a technical background. We have created a video guide to walk you through how to use this tool. There are also some best practices you’ll want to follow:
It’s important to have a sufficient number and variety of ad placeholders on your site. The placeholders are potential locations for ads to show and the system relies on them to test ad placements.