Fixing Error in ODK COLLECT

AM EXPERINCING THIS ERROR ,HOW DO I FIX

you have downloaded two different forms with the same form ID and version ,may be they were the same form uploaded at different times or to different servers .in any case ,you shuould delete one

As the error suggests its likely that you've downloaded two different forms with the same ID and version. Have you followed the instructions in the error message and deleted one of the duplicate forms?