when i look at the code, just above the code that you have there, i see:

PHP Code:
$meta_products_price = ''; 
do you not have that in your code?

see:

https://github.com/zencart/zencart/b....php#L264-L270

perhaps that line is not in the v158a fileset that you are using?

see this merged PR:

https://github.com/zencart/zencart/p...c06b299b40b7d2

it seems it was corrected almost 2 months ago.

best.