How do I fix the rendering block for a tetris game?

[ABG]

According to

Tetris : Recreation of 1980's Retro game

A simple extension for developing Tetris Game. Designer Properties BackgroundMusic text Sets source of background music of game [Will be only played if Enable music is true]. CurrentScore number Sets a current score of Tetris Game. DbName text Specifies custom name for shared preferences of Game's database [Can be also accessible using TinyDB component]. EnableMusic boolean Sets if music must be played, [Default : true] GameOverMessage text Specifies text for Game Over dialog's …

that extension is discontinued.