problems with images

I’m having some major issues with my images, for one they arnt resizing and for two every time i create a gallery they come up huge, its so big you see part of 3 pictures, i have the gallery taken down for now, but you can see the huge size of the other pictures.
travel-world.ca another issue i have is every time i try to upload pictures from the computer i get an error
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 10368 bytes) in /home/andrewst/public_html/travel-world.ca/wp-includes/media.php on line 254

i have checked line 254 and there is nothing there.

I have done so much troubleshooting before posting this, i am very lost.

another thing with the gallery when i try to choose a different size the buttons are grayed out