in this code:
<td >€ <?php echo WA_eCart_DisplayMoney($WA_Store_Cart, $WA_Store_Cart->DisplayInfo("TotalPrice")); ?></td>
you have hard coded the second euro symbol.
the WA_eCart_DisplayMoney function being used in the echo will pull the currency symbol from the eCart object. using that function will automatically add the currency symbol to the price.
Since you have also hard coded the euro symbol, it will display it twice. you dont need to hard code the currency symbol in that code.