我做個蛋糕失敗 jor ,不知道 dim 改 ah, pls help me!!!!

不知道點解, 我bake jor 個蛋糕, after i take it out from the oven, it has 濕濕黏黏的 texture, 好像 not cook gum, but i put enough time to bake it ,點解gum ge?? what should i do? pls help to solve this problem... really neeed to know....
thank you!!!!!