gray stripe on wide background

Hi there, I found this plugin very cool ?? thanks for sharing it ??

Although I get trouble on the white background display ( nor sure the name, better to see): I get a gray stripe on the right side on the screen in my monitor (MacBook 2015 13”) in every page. I test it, and it is clear comes only when I active this plugin.

I let the plugin on for while so you can see it.

I am in generate press, thrive architect, and the plugin list activad are:

Akismet Anti-Spam
Contact Form 7
Duplicate Post
GDPR Cookie Consent
GP Premium
HTML in Category Descriptions
Imagify
Limit Login Attempts Reloaded
Rate my Post – WP Post Rating
Select Social Media and Share Icons (Ultimate Social Media)
Social Media and Share Icons (Ultimate Social Media)
Select Thrive Architect
Thrive Architect
Thrive Product Manager
UpdraftPlus – Backup/Restore
WP Super Cache
Yoast SEO

Thanks so much if you can help! I’m really looking forward to use this rating post plugin.

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The page I need help with: [log in to see the link]