search errors

*I'm submitting a ...*
- [x] bug report
- [ ] feature request
- [ ] support request

## General infomration

### Prerequisites

* [x] Are you running the latest version?

### Description

I have a problem with searching for some content. When I want to search, for example, "dexter", "Lord of the Rings", "doctor who" and others I got an Netflix error.

At the beginning I thought that the search engine does not work, but finding some results, for example, for "harry potter", "shrek", "madagascar".

### Steps to Reproduce

1. Open kodi
2. Open netflix
3. Start search

**Expected behavior:**

Search for content

**Actual behavior:**

Netflix error

## Context (Environment)

### Installation

* [ ] I installed the plugin via zip from the Releases page
* [x] I´m using the Netflix Repo
* [ ] I´m using a different source (Please tell which)

### Operating System

* [ ] Linux (x86/x64)
* [ ] OSX (x86/x64)
* [ ] Windows (x86/x64)
* [x] Linux (ARM)
* [ ] Android

#### Additional informatin on the environment

CoreELEC (official): 8.95.6

## Debug log

http://www.wklejto.pl/669438

Start by reproducing the search from Kodi's Netflix plugin on Linux ARM/CoreELEC 8.95.6 using the reported failing queries and working queries, then inspect the linked debug log. Done means searches such as "dexter", "Lord of the Rings", and "doctor who" return content without a Netflix error.

Written by the indexing model from the issue text.