The $FiftyDaysAgo variable is causing a missing parameter error as written. Would that variable require two TimeConvert instances? Should it be written like this?

 Code:
$FiftyDaysAgo=TimeConvert(@DATE) - (50 * 86400)


This line gives a missing parameter error but I'm not quite sure why. I'm using 4.53 v kix
 Code:
$dFDAvalue = TimeConvert($FiftyDaysAgo, '1601/01/01') * 1000.0
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