Hello,
Go to Plugins > disable Elementor Header and Footer plugin. Use built-in XStore header builder
https://youtube.com/playlist?list=PLMqMSqDgPNmDu3kYqh-SAsfUqutW3ohlG too create header instead of that plugin. Use Static Blocks to create footer https://www.8theme.com/documentation/xstore/support/static-blocks/
Regards