It was not an accident the update, it occurs automatically and happened on January 19, 2024, in effect you have the last version 4.5.1,
Electrum wallet does not update automatically, you have to update it yourself and you can also manually download any version of Electrum you want. Take note that 4.5.1 is not the newest version, Electrum's latest release is 4.5.2.
If it is not the above, Uninstall it and directly download the new version (play store) and check the APP permits. Verify that it in effect has the correct version and that it corresponds. Take the corresponding forecasts since it may be putting your btc at risk.
Download Electrum only from the original website and not from anywhere else. Op's wallet seems to be a multisig wallet and if they could use the wallet and understand how to send tx's in previous versions, they should still be able to do it now, with the new update.