Hello @mustaphaturk,
Thank you for contacting us and for using XStore.
1/ Please go to Theme Options > WooCommerce (Shop) > Shop > Products style > Show Excerpt In Content Product > Off.
It is because your excerpt contains tags, and when a part of the excerpt is taken to show on the Shop page, some unclosed tags cause the problem. Keep the option disabled or edit the description of products. You can add a few words in the Short description area, without tags, then the content will be displayed just fine.
We hope this information is helpful.
2/ Please go to XStore > Patcher > click on Refresh patches, then Apply all patches and click on Refresh patches one more time.
Kind Regards,
8theme team