Hi, I recently have some problems with Electrum. I created the account at 2017 and I dont remember the seed & words. I know through the folder of electrum I can search it, but I dont know how the folder its called. I need some help 
Electrum will only allow you to see the seed phrase only if it was generated by Electrum itself. If you imported a Bip39 seed phrase that was generated by Blockchain.info, a hardware wallet, or some other desktop wallet, Electrum will not store the seed phrase (only the master private key) and therefor you will not be able to display the seed phrase.
At this point I suggest you create a new wallet, write down the seed phrase, store it someplace safe, then send all the funds from your old wallet to the new one.