Agreed the error is on line 5 as the error statement says sketch_sep26a:5:
Also note the message after, error: no matching function for call to 'LiquidCrystal::LiquidCrystal(int)'
basicly saying no function LiquidCrystal(int) in the lcd library.
And lastly you wrote lcd.begin twice, which is obviously not needed, if you dont know how to use the lcd display i suggest you look in your lcd libraries examples.