Plugin - pay with a like - hide nothing

The Pay with a like plugin have multiple problem with my website :
1. box always at the bottom of page and do not hide anything, why ?
2. break the previous bottom layout, why ?
3. No pay with a like icon with the editor when i select 'Select Excerpt', why ?
Config for now :
- Activation for post types : Pages : two box selected ( enable for all pages, and show metabox)
- Revealed content selection method : Automatic excerpt
- Description above the buttons : "pour découvrir les photos, cliquez un bouton ci-dessous"
- reload content on like : page refresh

buttons visibility :
- enable on the home page : no show the full content
- Enable for multiple post pages : yes, show buttons
- Admins see full, content : no
- Authorized users see full content : no
- Search bots see full content : yes
- cookie validity time : 1
Thank you for your help