What can I do with my camera?

When on holiday in September I used my camera as usual and had no problems but three days into the holiday when I used it and it was through the day there seemed to be lines going across and it was white as if there was light getting in somehow. When I used it at night inside I got a better picture. I wonder if this can be fixed. I got this camera Christmas 2008.
I look forward to hearing from you.