Q: After installing "Copy/Delete Custom Options on Multiple Products" extension on Magento version 1.8.1, a blank page is showing up. Please resolve this issue.
A: For the blank page issue, try the following steps:
Clear the cache
Logout from the system
Log-back in again
If the above steps don't resolve this issue, it is likely that the issue is due to some other extension. In order to trace the problem, enable the logs (located at var/logs on the root of the server) from the admin panel and check the same or alternatively share the access of the store with us by raising a ticket and we will look into it.