Coverage issues detected

Hello, I received a warning with “Coverage issues detected” of Google Search Console.

What I’ve seen is that the pages about “features” are “not found”. In my case the “tag” is “característica”.

https://garagemtt.pt/caracter%C3%ADstica/2o-chave/
https://garagemtt.pt/caracter%C3%ADstica/abs/

and so on about all the features.

What can be the cause of this? And how to solve it?

Thanks,
Luis

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