System is telling me not enought BTC to pay transaction fees... But I have enough

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See my answer here:

What does "Insufficient BTC at address X (Need approximately Y BTC.)" mean?

I had the same issue and got it solved by sending 0.001 btc to my counterwallet. The reason why your 0.0007 btc do not work is because it consists of maybe 14 tiny 0.00005340 btc which is called dust. If want to use these 14 tiny btc you also need 14 times the fee cause all adds up. The dust is created with each counterwallet transaction because it rides on the bitcoin network which needs a btc dust as minimum btc value. Still counterwallet could give a hint that the current balance has too mu…