скрипт создан для изменения значение скорости в Adobe after effects, но почему то при запуске ошибка "Unable to execute at line 8. Execution halted"

// Define the function to apply time stretch
function applyTimeStretch() {
// Get the currently selected layer in the active composition
var curComp = app.project.activeItem;
var curLayer = curComp.selectedLayers[0];

// Apply the Time Stretch effect to the selected layer
var timeStretchEffect = curLayer.Effects.addProperty("Time Stretch");

// Set the Time Stretch effect's speed to 33.333%
timeStretchEffect.property("Speed").setValue(33.333);
}

// Define the script author's name
var authorName = "FRAIDEN";

// Define the function to bind the key
function bindKey() {
// Create the script menu item
var menuCommandName = "Apply Time Stretch";
var menuCommandId = "applyTimeStretchId";
app.menuActions.add(menuCommandName, menuCommandId);

// Add the menu item to the Layer menu
var layerMenu = app.menuBar.menu("Layer");
layerMenu.addMenuItem(menuCommandId, authorName + " : " + menuCommandName, "", true);

// Bind the key to the menu item
var keySequence = "^T"; // Ctrl + T
var keySequenceId = app.findKeyModifiers(keySequence) + app.charToKeyCode(keySequence.slice(-1));
app.addMenuItem(menuCommandId + "Key", "Apply Time Stretch (Ctrl+T)", keySequence, true);
app.addEventListener("onKeyDown", function (event) {
if (event.keyName == keySequenceId.toString()) {
app.executeCommand(menuCommandId);
}
});
}

// Call the functions
applyTimeStretch();
bindKey();