Addon not listed on OSMC

Hi,
I`m having a issue with publishing my addon on OSMC – I`ve develop addon which should copy all images from my sd-card and run SimpleHTTPServer to share it. And it works on my ubuntu OS but when I am moving this addon to OSMC it is not listed on “Picture Addons”. My Osmc kodi is v17 and ubuntu kodi is v16.
My deployment process is just git clone.[/code]
Please find below screens with configuration:
File structure

Code:
.
├── addon.py
├── addon.xml
└── resources
    ├── language
    │   └── English
    │       └── strings.po
    └── settings.xml

Addon.xml

Code:
<?xml version="1.0" encoding="UTF-8" standalone="yes"?>
<addon id="plugin.picture.camerashare" name="Camera Share" version="1.0.0" provider-name="itogr.eu">
    <requires>
        <import addon="xbmc.python" version="2.19.0"/>
    </requires>
    <extension point="xbmc.python.pluginsource" library="addon.py">
        <provides>image</provides>
    </extension>
    <extension point="xbmc.addon.metadata">
        <summary lang="en">Plugin to share images from camera</summary>
        <description lang="en">It helps to store images from camera to local drive and then allows to share it via HTTP</description>
        <language></language>
        <platform>all</platform>
        <license>GNU GENERAL PUBLIC LICENSE. Version 2, June 1991</license>
        <forum></forum>
        <website></website>
        <email></email>
        <source></source>
    </extension>
</addon>