What’s wrong with her

First it was the old leaves but seems to be spreading to the newer leaves.

Growing in Coco professional
Ph was 7
Feeding ionic grow + rhizotonic
18/6
Temperature between 32-19 degrees c

pH is way too high. Get it down to 6.0.

Your temperature (32C) is even worse. You need to get that down to 25-26C (78F).

Yep will be making sure my ph is correct on the next feed if the soil ever dries.
Regarding the temperature I mate just buy an AC infinity or similar to help keep temp and humidity at the optimum.
will take a few weeks to arrive