Dealing with a lot of errors in a page

[Toxicous8]

Is there any way to get rid of html5 errors fast without collapsing or disordering the codes? Or am I just supposed to read and understand every error and think for the solution and correct the errors?

[Rabbit]

You should read, understand, and correct the errors. I have no idea what you mean by "collapsing " the errors.

[RonB]

Or am I just supposed to read and understand every error and think for the solution and correct the errors?

Yes, that is what you're supposed to do.