Reply To: Paypal wont work

Yes, it should show something even without PayPal.
I explain you what I KNOW what happens:
After submitting form the script fully loads till easyReservations, it checks and add the reservations and print out a successfully message and the paypal button. After that another script, probably from your theme or else another plugin, takes the whole content and replaces it by the smiley. You need to find out where and why.
Maybe it’s even a incompatible bug and that’s the most hard to find.
I would start by searching the code for the smiley. Anywhere it must come from.