I'm using electrum 2.7.1 and OS X Yosemite 10.10.5. 

Think this may be a factor of the error I keep getting?

The error message pops up after I enter my correct password to send the btc to another wallet.
the error message is, "object of type 'NoneType' has no len()" Anyone else run into this issue? If so or you happen to know how to fix this issue please let me know! Willing to donate/reward the individual that offers a working solution to this error/mishap!