Workflow Due Date Time Exceeded Error

static void Moeen_WorkflowDueDateTimeErrorResolution(Args _args)
{
    WorkflowWorkItemTable workflowWorkItemTable;
    utcDateTime         dateTimeToday, setDateTime;
    date                dateToday, setDate;
    TimeOfDay           timeToday, setTime;
    int i = 0;

    //Change date and time as per your requirement
    //DueDateTime expired before today. We will use this to filter the query below.
    dateToday  = str2Date("1/23/2019",213);
    timeToday   = str2time("12:00 am");
    dateTimeToday = DateTimeUtil::newDateTime(dateToday,timeToday);

    //Change date and time as per your requirement
    //Set the DueDateTime to future date & time
    setDate = str2Date("2/10/2019",213);
    setTime = str2time("12:00 pm");
    setDateTime = DateTimeUtil::newDateTime(setDate,setTime);

    //Updating the expired DueDateTime and updating it to the future.
    ttsBegin;
    while select forUpdate WorkflowWorkItemTable
        where WorkflowWorkItemTable.DueDateTime < dateTimeToday
    {
        workflowWorkItemTable.DueDateTime = setDateTime;
        workflowWorkItemTable.update();
        i++;
    }
    ttsCommit;

    info(strFmt("%1 record(s) updated", i));
}