Problem with sweeping BTC from Electrum wallet

I am having trouble sweeping BTC from my Electrum wallet to Counterwallet

This is the error messages it gives me:

Any idea what it could be?

I am 100% the private key is correct (no error message in Counterwallet) and there’s enough for mining fees.

Many thanks for your assistance

Several users had problems with counterwallet sweeping. Maybe try again on another day.

A workaround is to create a raw transaction, sign and broadcast using