Potree Encountered An Error

This may happen if your browser or graphics card is not supported.
We recommend to use Chrome or Firefox.

Please also visit webglreport.com and check whether your system supports WebGL.

If you are already using one of the recommended browsers and WebGL is enabled, consider filing an issue report at github,
including your operating system, graphics card, browser and browser version, as well as the error message below.
Please do not report errors on unsupported browsers.

TypeError: Cannot read properties of null (reading 'getExtension')
    at Object.get (https://vis.nus.app/libs/three.js/build/three.min.js:128:174)
    at new Xd (https://vis.nus.app/libs/three.js/build/three.min.js:164:4)
    at PotreeViewer.initThree (https://vis.nus.app/libs/potree/potree.js:19428:19)
    at new PotreeViewer (https://vis.nus.app/libs/potree/potree.js:18576:8)
    at https://vis.nus.app/:47:19