It is not about the fees or changing server, I have tried to change it all but nothing happens. I use seed and installed electrum on another device and finally was able to do 2 transactions but now the same thing I just can't send btc.
If you're really creating a 100 kB transaction, you're going to want to read
Fees are low, use this opportunity to Consolidate your small inputs!It explains how to select which inputs to use, and doing this correctly can save you a lot in fees.