your site is missing all signs of GeneratePress stylesheets, scripts etc. as well as HTML containers.
Not normal behaviour when ‘installing’ Elementor so something is wrong with your setup or there is a plugin that is causing this breakage.
Hey i found the actual reason why this is happening, actually i have created header with elementor and when i enable the header my full content becomes full width but when disabling the header it comes to normal.
Tell me how can i fix this… I want to use the elementor header
If you used the Elementor Theme Builder to create and add the Header then this shouldn’t happen.
You’re alternative is to save your Elementor Header as a regular template, get its shortcode and add this to a GP Hook Element, you can select the header hook, which will also give you an option to disable the GP header.