Android Question problem with basic4android after run the program

hi guys

last week when i made a program some problem happened and i really didn't know how to fix it, when i did run program after change some activity at the first resolution of pictures got problem and after that when again change activity it will show force stop

just watch the pictures and hope u guys can help me and it happen again after i test my friends program too

http://0up.ir/img/Album/b-error.jpg
http://0up.ir/img/Album/d-error2.jpg

thank u all