Update option not working

[ShrutiOmer]

Describe the bug Updation option for class name, subject name etc through edit are not working

To Reproduce Steps to reproduce the behavior:

1. Go to 'create class.'
2. Click on 'edit' 3.nothing gets updated
3. See error

Expected behavior updated things must be seen

Screenshots

Desktop (please complete the following information):

• OS: [microsoft windows]
• Browser [chrome]

Smartphone (please complete the following information):

• Device: [e.g. iPhone6]
• OS: [e.g. iOS8.1]
• Browser [e.g. stock browser, safari]
• Version [e.g. 22]

Additional context Please assign this issue to me.