I have and old version of electrum wallet portable version 1.7 running on windows 11 that i had being using since 2013 till date but after changing my internet modem. I started receiving an error when i open my electrum saying
"A problem occurred when attempting to sync with the blockchain. Try manually running resync.cmd"
The best thing you can do is to import your wallet seed or wallet file into a newer version (the latest is 4.33) and make sure to download it from the official website and verify its signature.
You can also, in case V 1.7 allows exporting signed raw transactions, create a transaction sending all your coins to a new wallet you own, sign it with the current version then broadcast it using any online tool such as coinb.in
Before doing any of the above, make sure to make more than one copy of your wallet file and save it in a safe place. Newer versions of Electrum will change the wallet format and if something goes wrong it will be almost impossible to fix it.