Laravel Method does not exist after rename

I have a little problem here, after i renamed a method from store to save also i was renamed in the Route

Route::post('blog', 'Backend\BlogController@store');

to

Route::post('blog', 'Backend\BlogController@save');

but when i hit submit it's still show me Method [store] does not exist.

anyone can help me out ?

Thank you

via Chebli Mohamed