I’ve got the same problem, hamburger dont work.
I have parent theme Blocksy,
And child theme Blocksy, which was created on Crocoblock website by their Crocoblock Wizard.
This is what is in CHILD Blocksy theme:
https://drive.google.com/file/d/1_igGnlblBTOTEDgcRsOO74_C9ACCnEEE/view?usp=sharing
Is it correct, that I need to delete header.php fie?
If Yes, then I would probably lose some functionality or compatibility with Crocoblock, which I use on this website.
