Lisa OConnor / AFF-USA.com / MEGA Ryan Reynolds’ Wrexham fairytale has hit a painful bump after the club narrowly missed out on a playoff spot in a dramatic end to the season. The Welsh football club, co-owned by Reynolds and Rob McElhenney, reportedly lost out on a potential $250 million payday after failing to keep its promotion hopes alive. The setback has sparked warnings from sports finance experts, who say Wrexham’s heavy spending could be…