Dynamic URLS ‘not found’

I just done an audit for my website and it came up with the following:

Dynamic URLS ‘not found’ and need fixing.

http://www.colinwallacephotography.co.uk/?p=14

http://www.colinwallacephotography.co.uk/?p=16

http://www.colinwallacephotography.co.uk/?p=18

http://www.colinwallacephotography.co.uk/?p=20

http://www.colinwallacephotography.co.uk/?p=9

http://www.colinwallacephotography.co.uk/?p=97

How do I fix this?

Thank you.

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