Wordpress Woocommerce shows a blank white screen in an Theme

Avg Bid (USD)
Project Budget (USD)
$250 - $750

Project Description:
all other themes worked well. But this them used (2-3 years old shows a blank screen) if y use Shopfunction like but something in the basket.
(check here)
. So the problem must be in the Theme. Other shop fuction dont work and produce the some blank screen.
Target: fix this and teel the changes.

Skills required:
PHP, Wordpress
About the employer:
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