Error

Hi, i do nothing and this has happend. how to fix this?.

`Notice: Undefined property: toyyibpay::$display_logo in /home/presario/public_html/bidaraterapi.com/wp-content/plugins/toyyibpay-for-woocommerce/src/toyyibpay.php on line 40

Notice: Undefined property: toyyibpay::$display_logo in /home/presario/public_html/bidaraterapi.com/wp-content/plugins/toyyibpay-for-woocommerce/src/toyyibpay.php on line 42

Notice: Undefined property: toyyibpay::$display_logo in /home/presario/public_html/bidaraterapi.com/wp-content/plugins/toyyibpay-for-woocommerce/src/toyyibpay.php on line 40

Notice: Undefined property: toyyibpay::$display_logo in /home/presario/public_html/bidaraterapi.com/wp-content/plugins/toyyibpay-for-woocommerce/src/toyyibpay.php on line 42

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