Your temp and humidity will not be causing problems with excess nutrient uptake, and it will be making the bacteria slow in productivity.
That amount of chicken crap is so small I doubt it’s causing problems by itself, but with everything else it’s all a bit much for the plant. Probably good that the temperature is on the low side the burn could be a lot worse.
On your next run I would add more inert stuff like peat moss or coco to the mix to reduce the strength of your mix.
When I make a tea I just use a table spoon of organic unsulfered molasses in 5 gals of water, just enough to get the bacteria active and multiplying, for 24 hours before using it.