Major stress and an imbalanced metabolism caused by growing for weeks at 24/0.
All plants NEED sleep to finish their photosynthesis cycle and to be able to function properly.
Go to 18/6.
The MYTH that it is OK to grow plants for weeks/months without sleep needs to be removed from history ASAP!
Also growing in a too small pot with a pH of 8+ has not helped, and you don't list that you have been feeding your plant anything........