SideKick is appearing twice

[Durgatechie]

I m using sidekick on 10.3 version and on mysite core desktop menu i can see sidekick is apearging twice. when try to sidekick content using any of those 2 sidekick , my content in the tree is duplicated and the contents seems to be messed up . am i missing any thing here?appreciate your help! thanks in adance!