How instal a shop with chocolate theme

Howdy, i’m install chocolate theme in word press but woocommerce and cart press don’t run.
i create all the categories an show the products but when i select a picture for more information about the product have this trouble:

Catchable fatal error: Object of class WP_Error could not be converted to string in C:\Users\Myriam\Documents\Websites\www.obradordemama.dev\wp-content\themes\chocolat\functions.php on line 2527

I can’t fix it, theres some solution?

Thanks