Quite possibly it is wrong, or not expressed in a natural way. However, there may be ways in which it could make sense, and it is not possible to completely eliminate those without seeing more context.

Perhaps it's just a short way of saying "call the emergency number".

But not found in the dictionary.

Nafisi"Call the emergency". Is this sentence right? I think"no". It is in a book written by non-native English speakers.What do you think?

It doesn't mean anything on its own. It would be helpful if you mention how it was used.

no text , just in a picture like a photo dictionary.

Nafisino text , just in a picture like a photo dictionary.

Based on that, the author must be meaning that someone is calling the phone number for the emergency services in their location. You could say that they must call the emergency services.

I take it to mean "In case of emergency, call 115".

Nafisino text , just in a picture like a photo dictionary.

I don't recognise that as correct English. If it's supposed to be an instruction (which is not completely clear), it should be "Call the emergency number/services".

Nafisi"Call the emergency".

'Call Emergency' seems natural enough to me.