Modify Wordpress Plugin to Work with PHP7

Wordpress Plugin Modification from PHP5 to PHP7 I recently upgraded my website after 5 years (actually its probably longer) from PHP5.6 to 7.0. Although my website is much quicker now, the upgrade partial broke a plugin that is an integral part of my website, namely a member point system in which members can download digital media with points that they have purchased. The plugin does work in terms of being able to download previously purchased media. It also works in terms of being able to purchase new media with existing points. However, connection to gateway no longer works for new point purchases and three of the administration tabs for the plugin no longer appear. I can provide some nginx error log entries. The original developer doesn't seem to support the product any longer nor is his website active. I am now looking for someone to modify the plugin to work without any errors with php7. If you have the expertise to do this job, please contact me. Thank you. Server Info: ClassicPress running on Amazon EC2 instance with nginx, php70, and mysql installed.