Uncaught TypeError: round() in PHP 8.0

[CamillaVoss]

I tried running my modx environment with PHP 8.0 and encountered an issue with Resizer when trying to save a resource.

PHP Fatal error: Uncaught TypeError: round(): Argument #1 ($num) must be of type int|float, string given in /Users/name/Sites/site/core/components/resizer/model/vendor/sepiariver/reductionist/src/Reductionist/Reductionist.php:292 Stack trace: #0 /Users/name/Sites/site/core/components/resizer/model/vendor/sepiariver/reductionist/src/Reductionist/Reductionist.php(292): round('575px') #1 /Users/name/Sites/site/core/components/phpthumbof/model/phpthumbof.class.php(385): Reductionist\Reductionist->processImage('/Users/name...', '/Users/name...', Array)