Why was the Laos team disqualified?

Context: Also on 22 September, the men's doubles team for Sepak Takraw were bronze medalists. The Laos team were disqualified for failure to play their semi-final match. Singapore had the best record of the teams that were eliminated from progression to the semi-finals, which was the fifth best record of all teams after the group stage. The team consisted of Mohamad Farhan Amran, Muhammad Hafiz Nor Izam Ja'afar and Eddy Nor Shafiq Sahari.

Answer: The Laos team was disqualified for failure to play their semi-final match.