Please follow the screenshot and steps below to fix the issue.
We found a Validation issue: http://prntscr.com/e81793
To remove particles fully to avoid console log:
1. Open main.js
2. Find the comment HEADER SLIDER BACKGROUND
3. Remove the code block (Screenshot: http://prntscr.com/e817uv)
Please don’t forget to give us ‘rating and review’ (on https://themeforest.net/downloads ), if you like our phpBB style and our support too. It will give us inspiration.
Best Regards,
ThemeLooks Support Team