Seems that right now the mini cart comes from Elementor so in order to disable it, navigate to Elementor -> Settings -> Integrations and set the “Disable” value: https://take.ms/Ra7Cv
Let me know if you have any questions, I’d be happy to answer them.
We have the same issue and followed the instructions here “post ID 502787 fixes the issue” You just have to be sure you clear any and all sever / browser cache. Thank you…