Error running the client: TypeError: Cannot read properties of null (reading 'useContext')

[maestros]

Hi,

Many thanks for this tutorial, however I'm getting the following error when I run the client:

cd client
npm run dev
....
TypeError: Cannot read properties of null (reading 'useContext')
    at Object.useContext (C:\repos\nft-marketplace-box\client\node_modules\react\cjs\react.development.js:1616:21)
    at Html (webpack-internal:///./node_modules/next/dist/pages/_document.js:204:73)
    at renderWithHooks (c:\repos\nft-marketplace-box\client\node_modules\react-dom\cjs\react-dom-server-legacy.browser.development.js:5479:16)
    at renderIndeterminateComponent (c:\repos\nft-marketplace-box\client\node_modules\react-dom\cjs\react-dom-server-legacy.browser.development.js:5552:15)
    at renderElement (c:\repos\nft-marketplace-box\client\node_modules\react-dom\cjs\react-dom-server-legacy.browser.development.js:5767:7)
    at renderNodeDestructive (c:\repos\nft-marketplace-box\client\node_modules\react-dom\cjs\react-dom-server-legacy.browser.development.js:5906:11)
    at finishClassComponent (c:\repos\nft-marketplace-box\client\node_modules\react-dom\cjs\react-dom-server-legacy.browser.development.js:5509:3)
    at renderClassComponent (c:\repos\nft-marketplace-box\client\node_modules\react-dom\cjs\react-dom-server-legacy.browser.development.js:5517:3)
    at renderElement (c:\repos\nft-marketplace-box\client\node_modules\react-dom\cjs\react-dom-server-legacy.browser.development.js:5764:7)
    at renderNodeDestructive (c:\repos\nft-marketplace-box\client\node_modules\react-dom\cjs\react-dom-server-legacy.browser.development.js:5906:11)
    at renderContextProvider (c:\repos\nft-marketplace-box\client\node_modules\react-dom\cjs\react-dom-server-legacy.browser.development.js:5741:3)
    at renderElement (c:\repos\nft-marketplace-box\client\node_modules\react-dom\cjs\react-dom-server-legacy.browser.development.js:5838:11)
    at renderNodeDestructive (c:\repos\nft-marketplace-box\client\node_modules\react-dom\cjs\react-dom-server-legacy.browser.development.js:5906:11)
    at renderContextProvider (c:\repos\nft-marketplace-box\client\node_modules\react-dom\cjs\react-dom-server-legacy.browser.development.js:5741:3)
    at renderElement (c:\repos\nft-marketplace-box\client\node_modules\react-dom\cjs\react-dom-server-legacy.browser.development.js:5838:11)
    at renderNodeDestructive (c:\repos\nft-marketplace-box\client\node_modules\react-dom\cjs\react-dom-server-legacy.browser.development.js:5906:11)

I believe I followed your instructions to the letter.

Any advice would be appreciated.

Many thanks!