Berikutan plastik gelembung yang rosak, kami membungkus barang rapuh semula.

Berikutan links the first idea to the main clause and means something like following, as a result of, or because of that in this context.

So:

• Berikutan plastik gelembung yang rosak = Following the damaged bubble wrap / Because the bubble wrap was damaged

A learner should know that berikutan is a bit more formal than very everyday causal expressions like:

• kerana = because
• disebabkan = caused by / because of
• akibat = as a result of

So this sentence sounds fairly natural, but slightly formal or written.

Malay often builds noun phrases by putting the main noun first and the describing noun after it.

• plastik = plastic
• gelembung = bubble

So plastik gelembung literally means bubble plastic, which is the normal Malay way to say bubble wrap.

This is very common in Malay:

• air batu = ice
• rumah kayu = wooden house
• mesin basuh = washing machine

The word order is often the reverse of English.

Yang introduces a relative clause, like that, which, or who in English.

• rosak = damaged, broken, spoiled
• yang rosak = that is damaged / which was damaged

So:

• plastik gelembung yang rosak = the bubble wrap that was damaged

In Malay, yang is extremely common for adding descriptive information after a noun.

Examples:

• orang yang baik = the person who is kind
• buku yang tebal = the book that is thick
• kereta yang mahal = the car that is expensive

Yes. Rosak is a broad word. Depending on context, it can mean:

• broken
• damaged
• faulty
• spoiled
• not in good condition

With plastik gelembung, rosak most naturally means damaged or torn, not necessarily smashed or destroyed.

So in this sentence, damaged bubble wrap is probably the best interpretation.

Bungkus is the root word, connected with wrapping or packing.

The form membungkus uses the meN- verbal prefix, which often makes an active verb:

• bungkus = wrap / package
• membungkus = to wrap / to package

Here it matches the subject kami:

• kami membungkus = we wrapped / we are wrapping

This active verb form is extremely common in standard Malay.

Malay does not have articles like the, a, or an.

So barang rapuh can mean:

• fragile goods
• the fragile items
• some fragile items

The exact meaning depends on context.

In this sentence, English may need something like the fragile items or the fragile goods, but Malay leaves that unstated unless it really needs to be specified.

In Malay, descriptive words usually come after the noun.

• barang = goods, items, things
• rapuh = fragile

So:

• barang rapuh = fragile goods/items

This noun + adjective order is normal in Malay:

• rumah besar = big house
• gelas kecil = small glass
• barang rapuh = fragile items

English speakers often need time to get used to this reversed order.

Semula means again, anew, or back over again.

So:

• membungkus ... semula = to wrap/repack ... again

In this sentence, semula shows that the fragile items had already been wrapped before, and then they were wrapped another time because the bubble wrap was damaged.

Very often, semula has the sense of redoing something:

• tulis semula = rewrite
• susun semula = rearrange
• bungkus semula = rewrap / repack

That is a very normal position in Malay. Words like semula often come after the verb phrase they modify.

So:

• kami membungkus barang rapuh semula

sounds natural and clearly means:

• we wrapped/repacked the fragile items again

Malay often places adverb-like words after the main action:

• cuba lagi = try again
• buat semula = do again
• baca perlahan-lahan = read slowly

Malay distinguishes between two kinds of we:

• kami = we, excluding the listener
• kita = we, including the listener

So kami means the speaker’s group did the repacking, but the person being spoken to was not part of that group.

That makes sense in a statement like this. If the speaker and listener both repacked the items, kita would be used instead.

Both can work, depending on context.

Literally:

• membungkus = wrapping
• semula = again

So the literal sense is wrapped again or rewrapped.

But in natural English, if this is about packaging goods for shipping or storage, repacked the fragile items may sound more natural.

So:

• literal feel: wrapped the fragile items again
• smoother contextual translation: repacked the fragile items

It is understandable and fairly natural, especially in a written or formal style. But some speakers might choose slightly different wording depending on the situation.

Possible alternatives:

• Disebabkan plastik gelembung itu rosak, kami membungkus semula barang rapuh itu.
• Akibat plastik gelembung yang rosak, kami terpaksa membungkus semula barang rapuh itu.

These versions can sound a bit more explicit because they include itu or even terpaksa (had to).

Your original sentence is still good, but berikutan gives it a slightly formal, report-like tone.