i have problem with seo

hello,,,, i have pro with my seo,,,, i cant change it i mean

I want to change the options of vBseo please help me ,

I want the right choices, as well as change when I try changed it

became to
blank page

Hello Ahmed ,

You can try increasing your php memory_limit to 32mb

i have no idea how can i increasing php memory_limit and were is that>>> tell me plz

You need to edit it in your php.ini file. If you are on shared hosting, please contact your host and ask them to increase the value.