Question

What is the spot the error for we were discussing about the matter?

Answer 1

• nucleus is the spot in the matter

Answer 2

Answer:

Spot the error:

In the case of spot the error the first criteria that should come up is checking the articles, next checking the tenses and then checking the spellings.

Here in this sentence that the,  

We were discussing about the matter?

Usually about will not follow after the discuss word may in noun or verb form hence then the correct form of the sentence is "we were discussing the matter".