target creature location crashing even though it worked before????

so i have this entity (night flayer) that is supposed to do an air dash attack towards the player by pushing it with the value of the players location minus the entities own location, but it seems to have trouble locating the entity it is targetting for attack even though it is checking if its aggressive and using variables?

it keeps giving me this error and crashing, but when i log back in, it still does the dash in the correct direction?

i was able to use the locating of target entities in other procedures, but this one doesnt work???????

hlep me.....

---

Description: Ticking entity

java.lang.NullPointerException: Cannot invoke "net.minecraft.world.entity.Entity.getX()"
    at net.thedead.procedures.FlayerfiendLEAPCOUNTProcedure.execute(FlayerfiendLEAPCOUNTProcedure.java:24) ~[main/:?] {re:classloading}
    at net.thedead.entity.FlayerfiendEntity.baseTick(FlayerfiendEntity.java:173) ~[main/:?] {re:classloading}
    at net.minecraft.world.entity.Entity.tick(Entity.java:422) ~[forge-1.20.1-47.3.0_mapped_official_1.20.1-recomp.jar:?] {re:classloading,pl:accesstransformer:B}