Twitter Authentication issue


#1

Before some days my application was working with Twitter API keys which are created for my application, but now a days these keys are not working, I change OAuthVersion 1.0 to OAuthVersion 1.1 but still I am not able to authenticate with these keys , how to check these keys changed ? and returning {“errors”:[{“message”:“Bad Authentication data”,“code”:215}]} How to resolve this problem to Authenticate with Twitter account

json result returning null with following url , how to return json result with this url
https://api.twitter.com/1.1/account/verify_credentials.json
https://api.twitter.com/1.1/users/show/1358745906.json

All API keys with twitter id returning correctone then why json or xml result getting null Please reply to this issue