There are a few things to check for when trying to solve this issue. First, your oven temperature may be too low, so be sure to check the accuracy of your oven temperature before baking. Putting an oven thermometer in your oven will ensure that your oven temperature is accurate. Second, be sure to check if your cake is baked throughout. A simple way to check to see if your cake is baked is to take a toothpick and insert it in the middle of your cake. If the toothpick comes out clean, then the cake is done!