You can adjust the amount of exercise appropriately and increase it. For example, you usually run for 30 minutes, you try to run for 40 minutes, or add 10 minutes of aerobic or yoga. Continue for three days and see if it works.
If the weight remains unchanged for three or four days, you can check whether your body fat rate has dropped. A lower body fat rate means you have less fat. As long as you persist for a few days, you will see the effect immediately.
If through the above steps, it is confirmed that you are really in the platform period, and your weight and body fat remain unchanged, then you must hold on and it will be fine after a while.