well its the best to stick to the vegetative nutrients, undtil the plant finished sstretch... you were quite low in fertiling , and the needed the energy andd sucked them out of the plant
and well maybe tseh waas to close to your light too
ii cant judge that.
remedies, stick to your vegetative feeding until stretch is done
and well its not too bad, because pant concentrrates now in making flowers
damage iis done, just go on
she will give you anice harvest, and thats what counts
keep on growing