Can someone please explain me the difference between ça and çe?

Hi The,

If you look at the following lesson, it will explain when to use the demonstrative adjective 'ce' (note no cedilla).

https://progress.lawlessfrench.com/revision/grammar/use-ce-cet-cette-ces-duration-la-ci-to-express-that-those-or-this-these-duration-demonstrative-adjectives

Ça is the contraction of 'cela' and it is explained in the lesson you bookmarked.

Hope this helps!