Support PHP 7.1

Hi.
Thank you for plugin.
But i install to website using php 7.1.4 and error

Deprecated: Methods with the same name as their class will not be constructors in a future version of PHP; PaygentB2BModuleException has a deprecated constructor in ~/wp-content/plugins/woocommerce-for-paygent-payment-main/jp/co/ks/merchanttool/connectmodule/exception/PaygentB2BModuleException.php on line 45

Please help me to fix it. Thank yous