How can i fix my new world gas grill?

Hi, I cleaned my grill with oven cleaner gel. When i use the grill it will ignite and stay on and the clicking sound will stop as the grill is working. After a minute or so the ignition will start sparking even though the grill is still working. I have looked inside the grill whilst it has been working and it looks like the ignition could be touching the flame. I wondered whether some of the cleaning gel was on the ignition so I have wiped it a number of times and I still have the same problem. The grill is working fine and stays on until I turn it off. Your help would be greatly appreciated. Thank you.