I've not come across this error before. Here is the code from the Trezor plugin for Electrum which is throwing this error:
https://github.com/spesmilo/electrum/blob/4aa319e5c31543883346e28a5459fa3642601be6/electrum/plugins/trezor/trezor.py#L84As it says, it can't find the UTXO for the input you are trying to spend. How have you created this transaction you are trying to sign? Are you sure it is a valid transaction?
Secondly, make sure the Trezor is up to date, and also ensure that you have the correct wallet open on the Trezor. Did you use a passphrase when setting up the wallet and have forgotten to enter it this time?
There have been a number of problems in the past with Trezor devices and multi-sig in the past, so this might be nothing you are doing wrong but rather a problem with Trezor.
I recently updated the firmware and installed that one exclusive for bitcoin. Maybe this is the problem. I will try to change and answer here.
The passphrase is correct. When it is not, the Electrum show an error message. And the addresses are correct, and the sign button is there. I tried to do it again many times. Same error.
I try to run Electrum with Trezor - not multisig. Create an account, received btc, and when I try to send them using the same procedure, from my watch only account in my cellphone and sign in Electrum, surprise, same error: missing previous tx.