I have no active light, when use the 2-channel relay it does not work,
when replace the relay module 2 channels by 2 relay modules 1 channel it works.But another problem the relays are set on pin 8 and 9 the 9 is activated and stops but the 8 does nothing and finally in the menu of the shield you can not change the temperature and humidity values by 1 degrees but it varies
for example I press to increase the values by 1, but this shows, 1 then 3 then 6 ... the hardest part is i'll try to fix its small coding problems by small,
Perhaps we could help with the coding problems, if we could see your code.
The pins not working issue may be because the pin(s) are being used by some other device. LCDs are notorious for the number of pins they use.
Switch issues could be because of floating pins.
We would really need to see a schematic, too.