Why did PhpStorm start cursing?

Question

phpstorm

Hello.
Created a new project, connected autoload via composer.
Kodil 2-3 days, everything was ok.
Today I open the project and see that PhpStorm swears like this:



Question: what's wrong? I didn't change anything, yesterday everything was ok.
The point is that all the code works. The classes that are described correctly are simply highlighted, now I'm confused where I made a mistake and where not.
Please do not throw slippers.

Answer 1

After disabling the Shared Indexes plugin, the situation returned to normal.

Answer 2

Click the [Import class] link, a connection by use will be automatically added at the top.