Fix a bugs on video – revolution slider

Hello,
How can i fix this problema that is happening on slider revolution video:
1) there is a white bar on the right that appears when i open the site first time, than it desapear and video fit all image, I’ve alredy changed video and it’s happening the same bug. Image of problem:
https://lucasthobias.com/wp-content/uploads/2023/02/problem-with-slider-whit-bar-on-the-right.png

2) Many times, when i open the site, it apears a black image instead os the video, how can i solve this problem?Image of problem:
https://lucasthobias.com/wp-content/uploads/2023/02/black-problem-on-video.png

3) take out banners on blog ; take out recent posts, archives and recent comments. Image of problems:
https://lucasthobias.com/wp-content/uploads/2023/02/take-out-banners-on-blog.png
https://lucasthobias.com/wp-content/uploads/2023/02/black-problem-on-video.png

website:
https://grupolocmil.com.br/

Thank you!