Parse error, Syntax error, Unexpected character, etc.

Hi there,

I haven’t done any tweaking with my blog lately but out of the blue when I try to visit it says:

“Warning: Unexpected character in input: ”’ (ASCII=39) state=1 in /home/incegeo4/public_html/blog/index.php on line 17

Parse error: syntax error, unexpected ‘.’ in /home/incegeo4/public_html/blog/index.php on line 17″

See: http://inceptivenotions.com/blog/

I tried going into my admin panel and it says:

“Parse error: syntax error, unexpected ‘<‘ in /home/incegeo4/public_html/blog/wp-admin/index.php on line 45”

Any idea on what could have happened or how I could fix this?

Thanks.