PHP 7.0 Compatibility

My ISP recently updated my PHP to 7.0, and the Hatchbuck plugin is ‘not compatible.”
Not sure if this is a problem yet.

Here’s the error message:
FILE:*****/wp-content/plugins/hatchbuck/admin/addons/form-widget/from-widget.php
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FOUND 0 ERRORS AND 1 WARNING AFFECTING 1 LINE
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13 | WARNING | Use of deprecated PHP4 style class constructor is not supported since PHP 7.
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