not.delivered.order

[Brosolnek]

I have wallet electrum 2.9.3, receiving address 1CJaXmLbRrMLkXfmAGfkSbTNyAXk6h9V8Y, where only 2 receipts were realized:
- 1Dp67UCpF6mAjbkFKy4GktyLJbFdSh9Juu, 100 mBTC
- 1M7YTm4qH2JYKjFAZ9CmisYYD43hcGq6dL, 500 mBTC,
but now I may not send the order to another wallet, even to the wallet I sent 100 mBTC to ELECTRUM wallet (see above), I get only information "Server did not answer" (address the wallet, where I wanted to send small amount is 15r26bNMu6cvWnyV4uz1Kmb87i1uSFk2X2)
I need to unblock the ELECTRUM wallet???