Plugin Not compatible with PHP V 7

I have de-activated the plugin after updating php on this site to 7.0 (most recent version available in hosting plan).

As soon as I updated PHP, received error message at the top of the site and on the page feed as well. Many, actually.

But this appears at the top of the site when you land:

Warning: Missing argument 1 for RebelCode\Wpra\Core\Entities\Collections\WpEntityCollection::__() in /data/8/5/67/155/5556481/user/6651549/htdocs/new/wp-content/plugins/wp-rss-aggregator/vendor/dhii/i18n-helper-base/src/StringTranslatingTrait.php on line 25

Warning: Missing argument 1 for RebelCode\Wpra\Core\Entities\Collections\WpEntityCollection::__() in /data/8/5/67/155/5556481/user/6651549/htdocs/new/wp-content/plugins/wp-rss-aggregator/vendor/dhii/i18n-helper-base/src/StringTranslatingTrait.php on line 25

Warning: Missing argument 1 for RebelCode\Wpra\Core\Entities\Collections\WpEntityCollection::__() in /data/8/5/67/155/5556481/user/6651549/htdocs/new/wp-content/plugins/wp-rss-aggregator/vendor/dhii/i18n-helper-base/src/StringTranslatingTrait.php on line 25

Warning: Missing argument 1 for RebelCode\Wpra\Core\Entities\Collections\WpEntityCollection::__() in /data/8/5/67/155/5556481/user/6651549/htdocs/new/wp-content/plugins/wp-rss-aggregator/vendor/dhii/i18n-helper-base/src/StringTranslatingTrait.php on line 25

Warning: Missing argument 1 for RebelCode\Wpra\Core\Entities\Collections\WpEntityCollection::__() in /data/8/5/67/155/5556481/user/6651549/htdocs/new/wp-content/plugins/wp-rss-aggregator/vendor/dhii/i18n-helper-base/src/StringTranslatingTrait.php on line 25

Warning: Missing argument 1 for RebelCode\Wpra\Core\Entities\Collections\WpEntityCollection::__() in /data/8/5/67/155/5556481/user/6651549/htdocs/new/wp-content/plugins/wp-rss-aggregator/vendor/dhii/i18n-helper-base/src/StringTranslatingTrait.php on line 25

Warning: Missing argument 1 for RebelCode\Wpra\Core\Entities\Collections\WpEntityCollection::__() in /data/8/5/67/155/5556481/user/6651549/htdocs/new/wp-content/plugins/wp-rss-aggregator/vendor/dhii/i18n-helper-base/src/StringTranslatingTrait.php on line 25

Warning: Missing argument 1 for RebelCode\Wpra\Core\Entities\Collections\WpEntityCollection::__() in /data/8/5/67/155/5556481/user/6651549/htdocs/new/wp-content/plugins/wp-rss-aggregator/vendor/dhii/i18n-helper-base/src/StringTranslatingTrait.php on line 25

Warning: Missing argument 1 for RebelCode\Wpra\Core\Entities\Collections\WpEntityCollection::__() in /data/8/5/67/155/5556481/user/6651549/htdocs/new/wp-content/plugins/wp-rss-aggregator/vendor/dhii/i18n-helper-base/src/StringTranslatingTrait.php on line 25

Warning: Missing argument 1 for RebelCode\Wpra\Core\Entities\Collections\WpEntityCollection::__() in /data/8/5/67/155/5556481/user/6651549/htdocs/new/wp-content/plugins/wp-rss-aggregator/vendor/dhii/i18n-helper-base/src/StringTranslatingTrait.php on line 25

Warning: Missing argument 1 for RebelCode\Wpra\Core\Entities\Collections\WpEntityCollection::__() in /data/8/5/67/155/5556481/user/6651549/htdocs/new/wp-content/plugins/wp-rss-aggregator/vendor/dhii/i18n-helper-base/src/StringTranslatingTrait.php on line 25

The page I need help with: [log in to see the link]