Hello,
First of all thanks for choosing our Theme, we are glad to be you in WoodMart WordPress family :-)
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As you said that your visual editor is not working and your site look get changed and nothing appears except of main menu and a part of the side menu.
It seems some of your third party plugins conflicts with the theme. Kindly deactivate all of your third party plugins and then check back. If the issue is still there then share your site login details in private section. I will help you out.
Best Regards.