Florentine Child Theme

I am having difficulty getting a child theme to work with florentine. I have found the BG writeup and also tested with the Hydra example. It seems to work, but on preview I get an error: Warning: call_user_func_array() expects parameter 1 to be a valid callback, function ‘boldgrid_enqueue_styles ‘ not found or invalid function name in /home/XXXXXXXX/XXXXXXX/wp-includes/class-wp-hook.phpon line 286. The body also renders on the left side of the screen. What do I need to do?

Thanks, Bry