latest version of wpdatatables still gets me “Deprecated: WDTException::__construct(): Implicitly marking parameter $previous as nullable is deprecated, the explicit nullable type must be used instead in **\wp-content\plugins\wpdatatables\source\class.wdtexception.php on line 7”

Hello, thank you for taking the time to report this.
Since this is a feature suggestion page, the best way to get this resolved would be to contact our support team directly so they can gather more information and assist you as quickly as possible.
Best regards
