Breakdown of Ako se pojavi problem, riješit ćemo ga zajedno.
Questions & Answers about Ako se pojavi problem, riješit ćemo ga zajedno.
In Croatian, after ako (if), you normally use the present tense to express a real/likely condition that can happen in the future. So Ako se pojavi problem literally looks like If a problem appears, but it functions as If a problem appears (in the future).
Using a future form in the if-clause is usually unnecessary and often sounds non-native.
Se is a clitic particle that often marks a reflexive verb, but here it’s more like an intransitive/“happens/appears” use.
Pojaviti se = to appear / to show up / to arise (something “appears” without explicitly saying who caused it).
So problem se pojavi is like a problem arises.