Having difficulty activating Revolution Slider

Envato Customers Web and Code
1

I keep getting this error message:
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 7680 bytes) in /MYSITE.com/wp-content/plugins/revslider/inc_php/revslider_slider.class.php on line 1120

This is line 1120
public function getSlides($publishedOnly = false){

I’ve tried deleting and reinstalling - then I get a similar message different line:
Fatal error: Allowed memory size of 33554432 bytes exhausted (tried to allocate 7680 bytes) in /MYSITE.COM/wp-content/plugins/revslider/inc_php/revslider_slider.class.php on line 1101

This is line 1101:
public function getSettingsFields(){

I keep getting a different message each time.

What can I do>

2

Your server is set to use 32MB for PHP, and that is not enough for WordPress in most cases. Increase PHP memory to 48M or 64M.