So I had the version 3.0.0 until today
Yesterday with the version I bought the coins and still in the same minute as the 2 order was there everything was deducted and today I googled and updated. Because I thought it was a mistake and if I update everything is there again.
and no I have never clicked on a popup window and never got anything like that.

and I'm sorry for the long text now but I do not know how to answer each one individually

when I did that was the version 3.0.0 after that I upgraded to 3.3.8 but before that I never downloaded the updates from anywhere else. only on electrum.org

I bought bitcoins yesterday and after the second buy, everything was transferred to another account immediately in the same minute.
Now my question, is that a mistake or was I robbed?
And what can I do about it?
Please fast help
need2buy

outputs:
1E4ynSJL8eT7TttgrtVxnkr3V2kUunLMAC        0.05027603

transaction id:
c5601f360ad47dd6bf6baa278cad8c4aaf8d9386af0d10e9fed21dcc3cbe5f28