Problems for sending LTC with my electrum wallet.

[rally]

I have downloaded this wallet for LTC and see my coins.
I want to sent a part of them, but i get always :
'Non type'object has no attibute'_getitem_'

What does this mean. How can i sent coins?
Can someone help me?

[rally]

Still nothing. Can sent my coins.
Does anyone have experience with this wallet?

[mnet26]

I've used this wallet for sending and receiving transfers.  Have you kept enough in your wallet to cover the network transaction fee?o

I know sometimes if I try to send the full balance I get a network transaction error.

[rally]

Yes i have enough, but every time i want to send , i have the problem in my first post.
My normal wallet for LTC (core) i downloaded always blocked at 2 years and 48 weeks behind. Than it stops.
Don't know what to do? Can someone help me?