Hello,
1) Revolution slider error is related to JS error http://prntscr.com/uztmrt . That error caused by Custom User Registration Fields for WooCommerce plugin. Contact plugin author to fix this.
2) Disable the sidebar for the page you create http://prntscr.com/uztnfh or globally in Theme Options > Blog > Blog-Layout > Sidebar position
3) “i lost the woocommerce categorie card” – where did you lose it? Could you, please, provide screenshot for better understanding?
Regards