Error code in Cydia when trying to view app info

[yesacekul]

Whenever I try and view information about an app in Cydia I get this error code

({"missing":["8L1"],"chip":35120,"shsh":[],"token":"2:b3d1305c:d1effedda473b69db6324c76a0ac46aba64c68d110bb97bcba01cbfbde12b2c49d2c5db08a04298c403c7ddd56e75cc1","board":0,"unseen":["youmail"]})

I get no info at all just the code, instead of the usual app description, screenshots etc

Any help would be greatly appreciated

Luke