[PHP8] Unsupported operand types: string * float

view/objectMain.php
cause = Unsupported operand types: string * float

Patch tool/projector.php by casting the 3 params to float:

function WidthDivContentDetail($positionListDiv,$objectClass){
….   
 
    $rightDivWidth=floatval(Parameter::getUserParameter('contentPaneRightDetailDivWidth'.$objectClass));
    $widthListDiv=floatval(Parameter::getUserParameter("contentPaneTopDetailDivWidth".$objectClass));
    $widthDetailDiv=floatval(Parameter::getUserParameter('contentPaneDetailDivWidth'.$objectClass));