HELP urgent my brinsea octagon 20 temperature has dropped to 34 and won’t get higher

[Trinny]

I need help I put 12 eggs in my incubator yesterday and there were 4 in there that are 5 days old already I went to bed and they were 37.5 but I woke up and it was 34.4 I tried to see it again this morning but it still wouldn’t get to temp I have just got home and it’s still 34-35 .2 what should I do will my eggs die

 

[Trinny]

So iv turned it up and the temp is slowly getting better at about 36.4