Urgent Help Needed +rep!

There is reddening of the stems and the older growth lower leaves are yellowing browning dieing. I've sprayed with 1/4 epsom salts twice

over watering with a way to high ph which is why they're yellowing ( over water) and brown tips( ph to high)

could a lack of nutes cause this?

https://www.rollitup.org/grow-journals/247823-super-lemon-silver-haze-bigbudxlr.html#post3146025 is all my ph