diff --git a/.devcontainer/setupEnv.sh b/.devcontainer/setupEnv.sh
old mode 100644
new mode 100755
diff --git a/src/frontend/wwwroot/task/task.js b/src/frontend/wwwroot/task/task.js
index dea805583..670d3e19a 100644
--- a/src/frontend/wwwroot/task/task.js
+++ b/src/frontend/wwwroot/task/task.js
@@ -26,6 +26,7 @@
     ? startTaskButtonContainer.querySelector("img")
     : null;
 
+  const textInputContainer = document.getElementsByClassName("text-input-container");
   const notyf = new Notyf({
     position: { x: "right", y: "top" },
     ripple: false,
@@ -130,6 +131,13 @@
     if(status === "completed"){
       taskPauseButton.disabled=true;
       taskCancelButton.disabled=true;
+      taskMessageTextarea.disabled = true;
+      taskMessageTextarea.style.backgroundColor = "#efefef";
+      taskMessageTextarea.style.cursor = 'not-allowed';
+      taskMessageAddButton.setAttribute('disabled', true)
+      taskMessageAddButton.style.cursor = 'not-allowed';
+      textInputContainer[0].style.backgroundColor = '#efefef';
+      textInputContainer[0].style.cursor = 'not-allowed';
     } else {
       taskPauseButton.disabled=false;
       taskCancelButton.disabled=false;