Hello,
1- To hide the Date from the Blogs, please try using the below Custom CSS code and paste it to Dashboard >> Theme Settings >> Custom CSS >> Global CSS section:
.blog-design-masonry.has-post-thumbnail .post-date {
display: none !important;
}
For the time being, we have applied this on your Site and the Blog Date is now hidden from your Site for the Blogs.
2- Regarding the Slider adaptiveness, these are the default Sliders which you can find under the Dashboard > Slides > there you can edit them with simple edit not Elementor > under that you can find the Custom fields option > in that you can define the size for Desktop, Tablet and Mobile: https://ibb.co/8PtCjws
3- & 4- Regarding the changes not reflecting, the thing is you have two Caches plugins active at the same time on your Site one is Redis Object Cache and the other one is WP Rocket which is why the changes aren’t reflecting on your Site. For the time being, we have disabled both of them and now the changes are reflecting correctly on your Site.
We would suggest you not activate any of the Cache plugins on your Site while you are Customizing your Site. Once you have done Customizing your Site then you can activate the Cache plugin on your Site and try using only WP Rocket because it works better with the Theme.
Best Regards
.
