Why am I seeing 4XX errors in my Google search console?

[AlokD]

This error is the HTTP status code ranged 400 to 499, which indicates the origin of problem happened at client side,due to one of the reason among browser or application making the request, the error states that the request made is malformed, unauthorized or the source request is unavailable, for example some of the common errors are 404, 401, 403. To get deep info on how to fix blocked due to other 4XX issues, follow the link mentioned.
https://www.algosaga.com/blog/blocked-d ... 4xx-issue/