Bug cant press sell or it force close

Ive been playin this game for a lil i downloaded on my dads phone and he cant click sell and the wood ony phone .04 his is .22 that with all of them iron and so on wth is going on lol someone plz help me

[support9]

I believe there's a typo or something in your description, could you please check again and confirm the following info with me:
a. what phone you are using?
iPhone(original, classic, 3G, 3GS... 5 ) or android phone (since there are thousands of brands and phones I cannot list them all, i.e. Sumsang Galaxy S3)
b. what is your dad's phone OS version no. ?
Please go to phone settings-general-about and check out the version no.

c. what is your app version no.

d. does the sell problem occur every time you click the SELL button no matter whether it is a NPC trade or a Market trade? Or this problem only applies to some certain circumstances?

I'm looking forward to hearing from you.