So so much root rot appear and she was not taking it good which left me with the only move is to place her in a soilless medium to save her, after that she is doing well buds continue to develop and the tree is looking alot better than last week stay tuned ๐๐พ.
I got some spots on the leaves of this autoflower in hydroponics also there's a little discolouration in the roots I'm not sure if that's the reason any help is appreciated.
Looked like you have some rot going on. You can treat her with some peroxide for a day, change the water, and then incorporate a compost tea without using molasses. Brewing a proper batch of compost tea and adding it after every res change will help keep the good bacteria flourishing which will kill off the bad destroying your roots. Also, make sure you have good airflow, turn that reservoir into a cold jacuzzi for your roots.
You may have to trim away some of the dead root material and as a last resort, you can transplant her into coco coir. Coco will retain a lot more oxygen in the root zone which also kills off the bad bacteria and you can use your hydro nutes. I personally have done this last step to save 2 dec plants.