Call to undefined function paragraphs_id_get_prefix

Hello,
Background does not work
I receive this error

Fatal error: Call to undefined function paragraphs_id_get_prefix() in D:\wamp\www\animate\sites\all\modules\entity_background\entity_background.module on line 221

Fresh install

Drupal 7.36
PHP 5.3.13
MySql 5.5.24

Entity API 7.x-1.6+6-dev
Entity Reference - 7.x-1.1+4-dev
jQuery Update - 7.x-3.x-dev -----> 1.10
Field Group 7.x-1.4+15-dev
Field collection 7.x-1.0-beta8+11-dev

Paragraphs (paragraphs) - 7.x-1.0-beta6+26-dev
Paragraphs pack -7.x-1.0-alpha5
Classy Paragraphs - 7.x-1.0-alpha4
Paragraphs ID - 7.x-1.0-alpha1
Entity background (entity_background) - 7.x-1.0-alpha6
I add parallax.js to sites/all/libraries/parallaxjs/parallax.js

I go to "Paragraph Bundles" page, and click on "Edit bundle" and check the "Enable entity background" checkbox.
I create a content type "Parallax"
I add field field "Paragraph" ( field type "Paragraphs") Embedded or field eb_background
I add a node content with
Title = "test"
Paragraph - Title = Title2
Content= "Bla Bla"
Background= Color ( or Parallax or Image )

When I try to acces the node I receive this error:

Fatal error: Call to undefined function paragraphs_id_get_prefix() in D:\wamp\www\animate\sites\all\modules\entity_background\entity_background.module on line 221

Thanks