By creating bookmarks, you can save shortcuts to your favorite webpages & websites and access them quickly from anywhere. If you are Unable to create bookmarks then you need to follow the below mentioned steps. Turn off the iCloud and reboot your iOS device. You won't need to re-login to websites that previously saved your password.
Step 1: Unlock your iOS device. Tap on settings option. Scroll down the menu until you find iCloud icon. Tap iCloud to open iCloud settings.
Step 2: Locate Safari within the iCloud settings. If slider button is set ‘on’, slide the button to turn it off. Reboot the device. You can do this by holding down the sleep/wake button.
Step 3: Now, boot your device by pressing sleep/wake button for few seconds. You will now find that you are allowed to bookmark webpages. Turn on iCloud.