RobL Caching for cookies could well affect the e-commerce section, we've had issues in the past with caching for cookies on ecommerce sites in the basket section so it may be best to leave this setting off.
Instead, are you using caching outside Ezoic e.g. at your host, via plugins or via Cloudflare? You'd want to disable your host/plugin caching if that is active and double check Cloudflare cache is set to standard. These changes should allow Ezoic's caching app to work more effectively on the site