When i click on Create Sites button it will show the below error
please tell me what can i do ...
Oops! An error has occurred
This can be for a number of reasons, which may or may not have to do with the OpenClinica application. If there are any system messages above this text, please copy and paste them into the Report Issue Form.
If there are no other messages, you might try clicking on the links in the navigation, and see what happens. This might reinitialize your connection with the database. Or click here to go back to where you came from.