הנציג במוקד אמר שיש תקלה במחשב.

Here מוקד most naturally means call center, service center, or hotline desk, not literally just focus or center.

So הנציג במוקד means the representative at the call center / hotline.

This is a very common modern use of מוקד in customer-service contexts.

In unpointed Hebrew, both are written the same way: במוקד.

• be-moked = in/at a center
• ba-moked = in/at the center

The same thing happens with במחשב:

• be-machshev = in a computer
• ba-machshev = in the computer

Hebrew usually leaves out vowel marks, so you decide from context. In this sentence, a native speaker will usually understand במוקד as at the call center and במחשב as in the computer.

אמר is the past tense, third person masculine singular form of to say.

So it matches הנציג because נציג is a masculine singular noun.

• הנציג אמר = the representative said
• If it were a female representative, it would be הנציגה אמרה

This is one of the first things Hebrew learners notice: the verb often shows gender and number clearly.

שיש is made of two parts:

• ש־ = that
• יש = there is / there are

So שיש תקלה literally means that there is a malfunction.

This is a very common Hebrew structure after verbs like said, knew, thought, and so on.

Because יש is the normal Hebrew way to express existence: there is / there are.

So instead of saying something like that a malfunction is in the computer, Hebrew says:

• שיש תקלה במחשב = that there is a malfunction in the computer

This is much more natural in Hebrew.

A useful pattern is:

• יש + noun = there is/are + noun
• אין + noun = there is/are no + noun

For example:

• יש בעיה = there is a problem
• אין בעיה = there is no problem

תקלה usually means malfunction, fault, or technical problem.

It is close to בעיה (problem), but תקלה often sounds more technical or mechanical.

So:

• בעיה במחשב = a problem with the computer
• תקלה במחשב = a malfunction/fault in the computer

In customer-service or tech-support language, תקלה is very common.

Also, תקלה is a feminine singular noun.

Because Hebrew often uses ב־ with devices, systems, or places when the problem is understood as being in them or within them.

So:

• תקלה במחשב = a malfunction in the computer
• בעיה במערכת = a problem in the system

If you say בעיה עם המחשב, that also exists and is very common, but the nuance is a little different:

• בעיה עם המחשב = a problem with the computer
• תקלה במחשב = a malfunction in the computer

Both can be natural, but תקלה ב־ is especially common in technical contexts.

In this sentence, במוקד most naturally describes הנציג:

• הנציג במוקד = the representative at the call center

So the phrase identifies which representative we mean.

If you wanted to emphasize the location of the act of speaking, Hebrew would usually arrange the sentence differently, for example:

• הנציג אמר במוקד ש... = the representative said at the call center that...

That version sounds more like the speaking happened there. In your sentence, the most natural reading is that he is the call-center representative.

Yes, but the meaning changes slightly.

• שיש תקלה במחשב = that there is a malfunction in the computer
• שהייתה תקלה במחשב = that there was a malfunction in the computer

Hebrew does not always shift tenses the same way English does after a past verb like said.

So after אמר, Hebrew can still use יש if the problem is presented as current or still relevant at the time being discussed.

That is why אמר שיש תקלה is perfectly natural.

It actually does have both, but they are joined together:

• ש־ = that
• יש = there is

So שיש is not one indivisible word in meaning. It is really a combination.

This is very common in Hebrew writing:

• שאני = that I
• שהוא = that he
• שיש = that there is

The ש־ often attaches directly to the next word.

A simple transliteration is:

ha-natsig ba-moked amar she-yesh takala ba-machshev

A few notes:

• הנציג = ha-natsig
• במוקד is usually understood here as ba-moked
• שיש = she-yesh
• תקלה = takala
• במחשב is usually ba-machshev in this context

Natural pronunciation may vary a little by speaker and accent, but that version will be widely understood.