Liyungfang context menu goes inside kartik area

Hi everyone
i used liyungfang context menu for my kartik grid-view
it works properly but when i right click the menu, menu goes inside grid-view area and makes a scroll and i should use scroll to see other options of menu
Like this:

i looked the code and searched a few hours but nothing found
how can i show the context menu completely without scroll???
Thank You Everybody

Hi again
I resolved my problem
the problem came from the kartik grid view
i downgraded the version of kartik grid view and then the problem resolved.
any idea about resolving the last version of kartik grid view is humbly acceptable.