Na tabletu opet nema memorije, pa ću izbrisati stare snimke prije sastanka.

Croatian normally uses na with many devices when it means on the device: na telefonu, na računalu, na tabletu.

Here na expresses location, so it takes the locative case:

• tablet → tabletu

So na tabletu means on the tablet.

After nema in this kind of existential meaning (there is no / there isn’t any), Croatian uses the genitive.

So:

• memorija → memorije

That is why nema memorije means there is no memory / there isn’t any memory left.

In everyday Croatian, memorija in a sentence like this usually means storage space in a general sense, not necessarily technical RAM.

So on a phone or tablet, nema memorije usually means something like:

• there’s no space left
• the storage is full

Opet means again.

Here it shows that this problem has happened before:

• Na tabletu opet nema memorije = The tablet is out of memory again

Its position is fairly natural here, before nema. Croatian adverbs can move around more than in English, but this placement sounds normal and common.

Here pa means so, and so, or so then.

It links the first idea to the consequence:

• There’s no memory again, so I’ll delete...

It is a very common and natural connector in Croatian.

This is the future tense.

Croatian often forms the future with:

• a form of htjeti used as an auxiliary: ću = I will
• plus the infinitive: izbrisati = to delete

So:

• ću izbrisati = I will delete

Croatian often leaves out ja because ću already shows first person singular.

Because ću is a clitic, and Croatian clitics normally stand near the beginning of the clause.

So after pa, a very natural order is:

• pa ću izbrisati

You can also hear:

• izbrisat ću

But izbrisati ću is not standard.

Because izbrisati is perfective.

That means it presents the action as a single completed event:

• I’ll delete the old recordings

This fits the situation well: one concrete action done before the meeting.

By contrast, brisati is imperfective and would sound more like:

• deleting in general
• deleting repeatedly
• being in the process of deleting

It is the accusative plural, because it is the direct object of izbrisati.

Base forms:

• snimka = recording / clip / file
• plural: snimke

The adjective must agree with the noun:

• stare snimke = old recordings

For feminine plural nouns like snimke, the nominative plural and accusative plural often look the same.

Snimka can mean recording, clip, file, shot, or sometimes photo/image, depending on context.

In this sentence, with deleting things from a tablet, stare snimke most naturally means old recordings or old media files.

Because prije (before) takes the genitive case.

So:

• sastanak → sastanka

That gives:

• prije sastanka = before the meeting

Yes. You could say:

• ... pa ću izbrisati stare snimke ...
• ... pa ću ja izbrisati stare snimke ...
• ... pa ja ću izbrisati stare snimke ... (less neutral)

But in normal Croatian, the subject pronoun is usually omitted unless you want emphasis or contrast, because ću already tells you the subject is I.