Hello Nishantha_k,
Thanks for posting in Apple Support Communities. We see exactly what you mean and we'd like to provide you with a few steps to remove the widget and add it back. Completing this step may be able to help resolve the issue:
"Remove a widget from the Home Screen
- Touch and hold the widget to open the quick actions menu.
- Tap Remove Widget (or Remove Stack), then tap Remove.
Add a widget to your Home Screen
- Go to the Home Screen page where you want to add the widget, then touch and hold the Home Screen background until the apps begin to jiggle.
- Tap
at the top of the screen to open the widget gallery. - Scroll or search to find the widget you want, tap it, then swipe through the size options.
- The different sizes display different information.
- When you see the size you want, tap Add Widget.
- While the apps are still jiggling, move the widget where you want it on the screen, then tap Done.
- Note: You can also add widgets to your Lock Screen. To learn how, see Personalize a new Lock Screen."
More details here: Add, edit, and remove widgets on iPhone
We hope this helps.
Have a wonderful day!