How can woocommerce get the custom field?

Hello,

I have set a custom field use true/false, name is sidebar, the default value is true.

Its show at all of the page, but when i try to check is it get the field, it return false at all of the woocommerce page. (its work at normal page)

I use this code to check the value.

if( get_field(‘sidebar’) ) {
echo “true”;
}
else {
echo “false”;
}

Please let me know if i doing some step wrong, thank you very much.

https://www.ads-software.com/plugins/advanced-custom-fields/