Rocket-loader.min.js Jquery is not defined

Hello. We are using Magento and when loading the products this error appears javascrip in the console.

Uncaught ReferenceError: jQuery is not defined
at taef (:1:699)
at :1:2954
at c (rocket-loader.min.js:1)
at p (rocket-loader.min.js:1)
at t.simulateStateAfterDeferScriptsActivation (rocket-loader.min.js:1)
at Object.callback (rocket-loader.min.js:1)
at t.run (rocket-loader.min.js:1)
at x (rocket-loader.min.js:1)
at Object.callback (rocket-loader.min.js:1)
at t.run (rocket-loader.min.js:1)

You can check it in this page https://www.shopmami.com/silla-de-coche-grupo-0-1-2-3-0-36-kg-taiyang-babyauto.html

Could someone help me?