I'm growing anxious and scared because of error inputting EW code

[Yakattak]

Will we get locked out of Endwalker zone, or will we be unable to play..
I'm anxious

I'm genuinely not sure. This is the wording from the original post:

Please register the full FINAL FANTASY XIV: Endwalker registration code before this time to continue playing after the Early Access period.

Not sure if this means continue playing Endwalker or the game. I'll chat SE and ask for us.