Welcome to the Canon Forums and thanks for your post!
To have a better understanding of your issue, please let everyone know what camera you are using. That way, the community will be able to assist you with suggestions appropriate for your product.
Any other details you'd like to give will only help the Community better understand your issue!
If this is a time-sensitive matter, our US-based technical support team is standing by, ready to help 24/7 via Email at usa.canon.com/support or by phone at 1-800-OK-CANON (1-800-652-2666).