You need an ETA for New Zealand if you have a Panamanian passport
Visa options for New Zealand
Visitor visa
Travellers need a visa to visit New Zealand for Business and Tourism. Travellers who are Australian permanent residents, cruise ship passengers, or transiting through Auckland International Airport are eligible for an Electronic Travel Authorization. Travellers who do not meet these conditions require a paper or embassy visa. The visa is typically a stamp or sticker added to the passport. Travellers must obtain a visa from a local embassy, consulate or visa center before travelling. Visit the government website for details.
This is not offered by sherpa°.
Apply on the government site.