docs: protected void setError(int newPosition, String error,
        boolean currentExisting) {
      if (!currentExisting) {
        newBasicValueSumList[newPosition] = operations.getZero1();
        newBasicValueNList[newPosition] = 0;
      }
      newErrorNumber[newPosition]++;
      if (newErrorList[newPosition].containsKey(error)) {
        newErrorList[newPosition].put(error,
            newErrorList[newPosition].get(error) + 1);
      } else {
        newErrorList[newPosition].put(error, 1);
      }
    }