Multi currency plugin error

Hi team Cutny Multi currency,

We’re using the multi currency plugin for managing multiple currencies on our site, http://www.perfumeryorders.shop but recently we’ve found that it’s creating issues with the woocommerce invoices. When we try to print the invoices from the orders page, it shows WordPress is having a critical error page, screenshot is attached below in link.
https://drive.google.com/file/d/1JzE8Vwgi9HOQfRHHSOM9FKj1cLoxoEjb/view?usp=drive_link

Amd we Also received am email from the WordPress that mentioned the error is due to Curny plugins on plugins/woocommerce-multi-curency/admin/order.php line 193,
Description from the mail is also attached here below you can have a look.
https://drive.google.com/file/d/16Z0gbUCEXPgzDAHnxT_1097bPtrcFF4R/view?usp=drive_link

Looking forward to your response.

Best regards