Эта ошибка принесла позор.

Because ошибка is a feminine singular noun, and the demonstrative этот must agree with it in gender, number, and case.

Here the noun is:

• feminine
• singular
• nominative (the subject of the sentence)

So the correct form is эта.

Compare:

• этот стол = this table
• эта ошибка = this mistake
• это окно = this window

In Russian, many nouns ending in -а or -я are feminine, and ошибка follows that common pattern.

So:

• ошибка = feminine
• nominative singular ending: -а

That is why the past-tense verb also uses a feminine form: принесла.

In the past tense, Russian verbs agree with the subject in gender and number.

The subject here is ошибка, which is:

• feminine
• singular

So the past tense of принести becomes:

• принёс for masculine
• принесла for feminine
• принесло for neuter
• принесли for plural

So:

• Ошибка принесла позор. means The mistake brought shame/disgrace.

The dictionary form is принести, which means to bring.

принесла is:

• past tense
• feminine singular
• from принести

This verb is also perfective, which means it presents the action as a completed whole: the mistake ended up bringing shame.

Позор is in the accusative case, because it is the direct object of the verb принесла.

The sentence structure is:

• Эта ошибка = subject
• принесла = verb
• позор = direct object

For many inanimate masculine nouns, the accusative singular looks exactly like the nominative singular.

So:

• nominative: позор
• accusative: позор

That is why the form does not change.

Yes. Literally, it means brought shame/disgrace.

This is a normal Russian way to express that something caused shame, resulted in disgrace, or brought dishonor.

So depending on context, English translations might be:

• This mistake brought shame.
• This mistake caused disgrace.
• This mistake was humiliating.

Not exactly.

Both are related to shame, but they are not always interchangeable.

• стыд often refers more to the feeling of shame
• позор often refers more to disgrace, public shame, or something shameful in a stronger, more outward sense

So принесла позор sounds stronger and more dramatic than something with стыд.

Yes. Russian word order is more flexible than English, because grammatical roles are shown partly by endings, not only by position.

The neutral order here is:

• Эта ошибка принесла позор.

But other orders are possible for emphasis, for example:

• Позор принесла эта ошибка. = It was this mistake that brought shame.
• Принесла позор эта ошибка. = more marked/literary

Even when the order changes, the basic meaning usually stays the same, though the emphasis shifts.

Russian can say that, but it is not required here.

This sentence is more general:

• Эта ошибка принесла позор. = This mistake brought shame/disgrace.

If you want to say who was shamed, Russian can add that information, for example:

• Эта ошибка принесла ему позор. = This mistake brought him shame.
• Эта ошибка навлекла позор на семью. = This mistake brought disgrace on the family.

So the original sentence simply leaves the affected person or group unstated.

You could, but the meaning changes.

• принесла = perfective, completed event
  This mistake brought shame.
• приносила = imperfective, often repeated, ongoing, or descriptive
  This mistake used to bring shame / was bringing shame

In this sentence, принесла is the natural choice because it refers to a specific result.

A careful pronunciation is approximately:

Э́та оши́бка принесла́ позо́р.

Stress:

• Э́та
• оши́бка
• принесла́
• позо́р

A rough English-style approximation:

• EH-ta a-SHEEP-ka pree-nees-LA pa-ZOR

Not exact, but useful as a first guide.

It is understandable and grammatically correct, but позор gives it a somewhat strong, weighty tone.

In everyday speech, Russians might often use other wording depending on context, such as:

• Эта ошибка была позором. = This mistake was a disgrace.
• Из-за этой ошибки было очень стыдно. = Because of this mistake, it was very embarrassing/shameful.
• Эта ошибка опозорила его. = This mistake disgraced him.

So the original sentence is natural enough, but it sounds a bit formal or dramatic rather than casual.