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you probably have a corrupted SD card.
Hi @Asimov13,
Welcome to the community,
Sorry to hear about the Error message, can you please advise what the error message states when you take a picture?
This will help me understand what the issue may be.
Please let me know.
Have you tried powering down the handset and removing the SD card for around 30 seconds, once done put the SD card back in and try to capture a picture.
Let me know how you get on.
Great, glad to hear that you managed to resolve this issue 
Anytime, let me know if you have any further issues.