Hello hellmynameis, your other girls are looking fine.
I looked at your diary and the only thing i could find was the ratio of nutes you use are different from the biobizz schedule.
I think that caused the problem with your pineapple express, and she didnt get enough nutes.
She probably has a rootproblem and i think thats why shes not flowering, i see she tried to flower to weeks earlier.
Try to up your nutes, especially the bloom, and also check biobizz schedule agains.
Maybe she has still a change, i cant tell u have to find out yourself my friend.
Also for the next runs with autos, i recommend you get them a bigger pot if possible so they have more space for the roots and eventually for the buds.
Hope this was an helpfull answer my friend, if so give the answer a like.
And always Keep on growing. Peace 👍