Uncaught (in promise) Error: The send transactions "from" field must be defined!

[ghost]

I ran into an error like this.

Uncaught (in promise) Error: The send transactions "from" field must be defined!
at Object.createTask (app.js:98:28)
at HTMLFormElement.onsubmit (（index）:53:74)

this is my createtask.
createTask: async () => {
App.setLoading(true)
const content = $('#newTask').val()
await App.todoList.createTask(content, {from: App.account})
window.location.reload()
},

index
<div class="container-fluid"> <div class="row"> <main role="main" class="d-flex col-lg-12 justify-content-center"> <div id="loader" class="text-center"> <p class="text-center">Loading...</p> </div> <div id="content"> <form onsubmit="App.createTask(); return false;"> <input type="text" class="form-control" id="newTask" placeholder="Add new task.." required> <input type="submit" hidden=""> </form> <ul id="taskList" class="list-unstyled"> <div id="taskTemplate" class="checkbox" style="display: none"> <label> <input type="checkbox"> <span class="content">Task content...</span> </label> </div> </ul> <ul id="completedTaskList" class="list-unstyled"> </ul> </div> </main> </div> </div>

help me

[ghost]

when I tried this, I ran another error.
like this.
Uncaught (in promise) Error: Returned error: sender account not recognized
at Object.createTask (app.js:98:28)

[ghost]

This was a problem on the metamask side. I solved it.