Since it was on that Synchronizing symbol, I started researching the reason and found out on the Electrum website that my version is outdated & I have to download the appimage & update it manually & so I did & et voila it went online straight after.
I did not check the signeture. I could send and receive funds without any problems after the update! - which means Phishing & malware is out of question!
You say above you are now using the modified iancoleman tool to try to find the former adresses/keys. But with the tool have you already been able to get the same adresses and keys you currently have on your Electrum wallet with your seed?