OSEPP-HUMI-01 dosen't detect temperature and humidity

Hi everyone, I am building a digital thermometer and hydrometer using a OSEPP-HUMI-01 temperature and humidity sensor and a 16x2 LCD display but it shows 0% on the display when it is on the hydrometer mode and 0.00 C on the thermometer mode. What is the problem? Thanks!

Frank

Use the library for DHT11
(remember to uncomment the correct sentence in the example code)