# The submit button is not responding for P.4.1 **URL:** \ **Category:** Codebook\ **Created:** [November 4, 2024, 8:21am UTC](https://discuss.pennylane.ai/t/the-submit-button-is-not-responding-for-p-4-1/7463 "2024-11-04T08:21:14Z")\ **Posts on this page:** 12\ **Page:** 1
**Author:** ![quantumel](https://avatars.discourse-cdn.com/v4/letter/q/7ea924/32.png) [@quantumel](https://discuss.pennylane.ai/u/quantumel)\ **Post date:** [November 4, 2024, 8:21am UTC](https://discuss.pennylane.ai/t/the-submit-button-is-not-responding-for-p-4-1/7463/1 "2024-11-04T08:21:14Z")
Hi, Today by testing the exercice in the codebook chapter P.4.1: Eigenphase of the T-Gate, the submit button is not responding. The application does nothing after pressing the buton submit altrhoug changing or not any value of alpha and beta and true or false. Best regards ---
**Author:** ![quantumel](https://avatars.discourse-cdn.com/v4/letter/q/7ea924/32.png) [@quantumel](https://discuss.pennylane.ai/u/quantumel)\ **Post date:** [November 4, 2024, 10:51am UTC](https://discuss.pennylane.ai/t/the-submit-button-is-not-responding-for-p-4-1/7463/2 "2024-11-04T10:51:02Z")
I encounted the same issue with P.4.2 not. ---
**Author:** ![quantumel](https://avatars.discourse-cdn.com/v4/letter/q/7ea924/32.png) [@quantumel](https://discuss.pennylane.ai/u/quantumel)\ **Post date:** [November 4, 2024, 10:54am UTC](https://discuss.pennylane.ai/t/the-submit-button-is-not-responding-for-p-4-1/7463/3 "2024-11-04T10:54:13Z")
Same issue with P.4.3 ---
**Author:** ![quantumel](https://avatars.discourse-cdn.com/v4/letter/q/7ea924/32.png) [@quantumel](https://discuss.pennylane.ai/u/quantumel)\ **Post date:** [November 4, 2024, 11:17am UTC](https://discuss.pennylane.ai/t/the-submit-button-is-not-responding-for-p-4-1/7463/4 "2024-11-04T11:17:21Z")
Ok please check the submit button in the page : [Quantum Phase Estimation | A Mixed Bag | PennyLane Codebook](https://pennylane.ai/codebook/09-quantum-phase-estimation/04-a-mixed-bag/) there is an issue. Unable to submit answer althrough we changes differents values for any of the codercises P.4.1, P.4.2 or P.4.3. ---
**Author:** ![quantumel](https://avatars.discourse-cdn.com/v4/letter/q/7ea924/32.png) [@quantumel](https://discuss.pennylane.ai/u/quantumel)\ **Post date:** [November 4, 2024, 1:41pm UTC](https://discuss.pennylane.ai/t/the-submit-button-is-not-responding-for-p-4-1/7463/5 "2024-11-04T13:41:59Z")
Ok I tested on 3 browsers: Chrome, IE and Firefox on Windows and Ubuntu. None of them has worked. So may it’s the UI because the code is working on me QML locally setup. ---
**Author:** ![feynmannlu](https://yyz2.discourse-cdn.com/flex012/user_avatar/discuss.pennylane.ai/feynmannlu/32/3305_2.png) [@feynmannlu](https://discuss.pennylane.ai/u/feynmannlu)\ **Post date:** [November 4, 2024, 2:49pm UTC](https://discuss.pennylane.ai/t/the-submit-button-is-not-responding-for-p-4-1/7463/6 "2024-11-04T14:49:33Z")
That happens also to me. I have tried to submit in every chapter, but there is also no responding. The situation begann from yesterday for me. ---
**Author:** ![quantumel](https://avatars.discourse-cdn.com/v4/letter/q/7ea924/32.png) [@quantumel](https://discuss.pennylane.ai/u/quantumel)\ **Post date:** [November 4, 2024, 3:30pm UTC](https://discuss.pennylane.ai/t/the-submit-button-is-not-responding-for-p-4-1/7463/7 "2024-11-04T15:30:35Z")
It’s work for while and now stuck again ---
**Author:** ![CatalinaAlbornoz](https://yyz2.discourse-cdn.com/flex012/user_avatar/discuss.pennylane.ai/catalinaalbornoz/32/1196_2.png) [@CatalinaAlbornoz](https://discuss.pennylane.ai/u/CatalinaAlbornoz)\ **Post date:** [November 6, 2024, 1:02am UTC](https://discuss.pennylane.ai/t/the-submit-button-is-not-responding-for-p-4-1/7463/8 "2024-11-06T01:02:47Z")
Hi @quantumel and @feynmannlu, We had some issues over the weekend but things look normal now. Can you please confirm whether you’re still experiencing issues? And welcome to the Forum @feynmannlu! ---
**Author:** ![feynmannlu](https://yyz2.discourse-cdn.com/flex012/user_avatar/discuss.pennylane.ai/feynmannlu/32/3305_2.png) [@feynmannlu](https://discuss.pennylane.ai/u/feynmannlu)\ **Post date:** [November 6, 2024, 8:24am UTC](https://discuss.pennylane.ai/t/the-submit-button-is-not-responding-for-p-4-1/7463/9 "2024-11-06T08:24:04Z")
It is alright now! 😀 ---
**Author:** ![CatalinaAlbornoz](https://yyz2.discourse-cdn.com/flex012/user_avatar/discuss.pennylane.ai/catalinaalbornoz/32/1196_2.png) [@CatalinaAlbornoz](https://discuss.pennylane.ai/u/CatalinaAlbornoz)\ **Post date:** [November 6, 2024, 11:14pm UTC](https://discuss.pennylane.ai/t/the-submit-button-is-not-responding-for-p-4-1/7463/10 "2024-11-06T23:14:42Z")
Amazing! 🙌 Thanks for confirming @feynmannlu ---
**Author:** ![quantumel](https://avatars.discourse-cdn.com/v4/letter/q/7ea924/32.png) [@quantumel](https://discuss.pennylane.ai/u/quantumel)\ **Post date:** [November 7, 2024, 2:37pm UTC](https://discuss.pennylane.ai/t/the-submit-button-is-not-responding-for-p-4-1/7463/11 "2024-11-07T14:37:22Z")
It’s working. Thanks ---
**Author:** ![CatalinaAlbornoz](https://yyz2.discourse-cdn.com/flex012/user_avatar/discuss.pennylane.ai/catalinaalbornoz/32/1196_2.png) [@CatalinaAlbornoz](https://discuss.pennylane.ai/u/CatalinaAlbornoz)\ **Post date:** [November 7, 2024, 10:50pm UTC](https://discuss.pennylane.ai/t/the-submit-button-is-not-responding-for-p-4-1/7463/12 "2024-11-07T22:50:23Z")
Thanks for confirming @quantumel ! 🙌