The burner knob may have accidentally been adjusted to the LITE position, which can affect the cooktop by lowering the burner's flame to its ignition level. You usually use the LITE button only to turn on a burner; when the burner's lit, you release the knob or turn it away from the LITE setting to the heat setting you want.
Relighting the burner often eliminates the problem by temporarily turning off the burner's gas supply. Turn the burner's knob off for one minute, then turn the knob to the LITE position. The burner should relight and should stop ticking once the burner is lit.
A problem with the gas shutoff valve can prevent a GE cooktop from operating properly. The shutoff valve is located in the cabinet beneath the cooktop, or along the wall behind or near the cooktop. Turn it counterclockwise to ensure the valve is open all the way to allow gas to flow properly through the supply line to the cooktop.
Exposure to water or other spilled liquids can affect your cooktop's ability to produce a spark and flame when powered on. In such a case, the igniter might click over and over but fail to produce a flame at the burner. You'll have to wait for the burner to dry out. Once the spilled liquid evaporates, the cooktop's burner and electrode will dry and resume proper ignition. A moist or wet igniter will not produce a spark. It's likely that it will take 24 hours or more to thoroughly dry.