Fatal error: Out of memory

Hello,
I seem to be getting this sort of error message whilst uploading images since I updated the plugin.
I have already contact my webhosting who says nothing has changed - memory is set to 256MB...any ideas?

Fatal error: Out of memory (allocated 61865984) (tried to allocate 137423 bytes) in /home4/[Moderated]/public_html/afrikinloveithere.com/wp-content/plugins/wp-smush-pro/lib/class-wp-smush.php on line 631