The insurance company for Battle Ground Public Schools — which lost a lawsuit this week just because it never responded — issued a public apology Thursday, calling the situation an “oversight.”The school district, through its insurance company, Canfield Solutions of Ephrata, was ordered Tuesday to pay $129,185 in damages to the family of a Yacolt boy. Trae Letts, then 13, was struck in 2009 by a falling tree while playing at Yacolt Primary School. He suffered a skull fracture.The lawsuit meant the school district was on the hook for a $1,000 deductible. But “as a result of this event, Canfield … will be fully responsible for any financial impact,” a letter from the insurer stated.The Letts’ attorney, William Baumgartner, had contended the school district was negligent in allowing old, rotting trees to be on school property, in the wake of several community complaints.But that’s not why the district lost the case. Clark County Judge Diane Woolard made a default judgment, or a money award based on the insurance company’s lack of response to the family’s lawsuit.