Throw-in Violation or Out of Bounds Violation

[Afrosheen]

Scenario:

Team A has been awarded a designated sport throw-in on the end line. Player A1 from Team A throws an errant pass to teammate A2. Teammate A2 has to go out of bounds to catch the ball. The ball doesn't touch any other player before touching teammate A2.

What do you have? Out of Bounds violation or Throw-in violation? Where does Team B throw the ball in? From the designated spot where Team A was or at the spot on the sideline where teammate B caught the ball out of bounds?