Hello,

Please add this code in Theme Options > Custom css to remove default background:

.white-popup-block{
   background:none;
}

Also, provide a screenshot of your issue.
We’ll release new update during this week.

Regards,
Rose Tyler.

Hello,

Thank you for using our theme!
1. You can add your text in category description or header http://prntscr.com/exqyzw and then edit woocommerce/archive-product.php file, change position of this line
or this one to http://prntscr.com/eqsa2g
Make your changes in the child theme to prevent losing them after theme update https://8theme.com/demo/docs/woopress/index.html#!/3_child_theme.
2. You need use “Woocommerce Layered Nav” widget to show attributes filter.
3. Unfortunately, there is no such possibility by default. You can edit header.php file and use customization of the default theme files in the child theme. Please read how to create the child https://www.8theme.com/demo/docs/legenda/index.html#!/child_theme
4. Shop, Cart, Checkout and My Account pages are WooCommerce pages and you should install them after WooCommerce plugin installation https://docs.woothemes.com/document/woocommerce-pages/
5. Please read this topic https://www.8theme.com/topic/full-width-instagram/
6. You can use Custom css and media query to change style on mobile. How to create custom.css you can watch in this tutorial https://youtu.be/Qok2zRedRMY
7. Please read here how to add icons to menu:
http://wptavern.com/how-to-easily-add-icons-to-menus-in-wordpress
8. Try to change images sizes in Woocommerce > Settings > Products > Display and then regenerate thumbnails with the plugin https://wordpress.org/plugins/regenerate-thumbnails/.
https://docs.woocommerce.com/document/fixing-blurry-product-images/

Regards,
Rose Tyler.

Hello,

Please wait for the theme update, it will be fixed.

Regards,
Rose Tyler.

Hello,

To update free plugins just click on update link from your Dashboard (Plugins > Installed Plugins).
To update premium plugins, connect to your server using FTP. Copy extracted plugins folders into wp-content/plugins/ . The latest versions of plugins you can find here.

Regards,
Rose Tyler.

Hello,

I’ve checked your shop and seen the same issue with some others simple products.
You can try to disable 3-rd party plugins and check issues.
Also, very likely problem was caused by new WooCommerce version. Our latest theme version is 3.0.1 and it is compatible with WooCommerce 3.0.1

Regards,
Rose Tyler.

Hello,

You’re welcome!
Have a nice day.

Regards,
Rose Tyler.

Hello,

What Woocommerce and theme version do you use?

Regards,
Rose Tyler.

Hello,

Our latest theme version is 3.0.1 and it is compatible with WooCommerce 3.0.1 and WP 4.7.3.
You need to enter your purchase code to activate our new theme version and skip Setup Wizard.
Don’t forget to create backup of your files and database before starting update process!

Regards,
Rose Tyler.

Hello,

We’ll release new update during this week. Did you face compatibility issues on your site or just notices about out of date files?

Regards,
Rose Tyler.

Hello,

The latest theme version you can download on Themeforest https://themeforest.net/item/royal-multipurpose-wordpress-theme/8611976?s_rank=3
It is compatible with WooCommerce 3.0.1.

Regards,
Rose Tyler.

Hello,

Our latest theme version is 3.0.1 and it is compatible with WooCommerce 3.0.1.
Please, wait to new theme update.

Regards,
Rose Tyler.

Hello,

It’s created with Essential Grid. https://www.8theme.com/demo/docs/royal/index.html#essential_grid
Also read plugin documentation
https://www.themepunch.com/essgrid-doc/essential-grid-documentation/

Regards,
Rose Tyler.

Hello,

The previous code doesn’t relate to revolution slider.
Please check slider now.

Regards,
Rose Tyler.

Hello,

You can simply update these plugins now, via FTP, just replace the folder with new update in wp-content/plugins/.

Regards,
Rose Tyler.

Hello,

1, 5. Please provide screenshots.
2. Theme Options > Single Product Page http://prntscr.com/ewehsv
3, 4. As I see, you have 2 Home page http://prntscr.com/eweizd http://prntscr.com/ewej80. What exactly do you mean? Did you use 3-rd party plugins in work on Home page and Footer? Your Footer area in Widgets is empty http://prntscr.com/ewemtq, but you have footer static block, please read documentation https://www.8theme.com/demo/docs/woopress/#!/0_footer
6. Go to Theme Options > Header Settings > Top cart icon, Top cart icon size
7. http://prntscr.com/eweq5a > http://prntscr.com/eweq8o also you can add this code in Theme Options > Custom css to change mobile menu font color:

.close-mobile-nav.close-block.mobile-nav-heading, .et-mobile-menu li a, .mobile-nav-heading, .mobile-nav .links li a {
    color: white;
}

You can try to use some 3-rd party plugin, but you need to test it compatible with our theme.
Also, before update any plugin (in this case woocommerce http://prntscr.com/eweveb) you need to be sure that theme and other plugins that you use are compatible with the new version.
Feel free to ask if you need any other help.

Regards,
Rose Tyler.