I want to send the money from my paper wallet to a desktop wallet (Electrum).
Does your paper wallet use mini private key format? Some paper wallets do.
A mini private key is 30 alphanumeric characters long, and the first character is always the uppercase letter S.
Back in 2015 electrum couldn't import private keys in that format, it could only import private keys in Wallet Import Format (WIF).
So simply put, everything i said + its a mini key, the kind that begins with an S, just like in that link it is described. Do i do something with that?
You can only import private keys in Wallet Import Format (WIF). You can convert to WIF using the wallet details tab of https://www.bitaddress.org . You can download this page and run it offline. It uses client side javascript for everything.
You can convert keys to WIF format using an offline copy of this page.
https://www.bitaddress.org
Never put your private keys into an online copy of it. To download it open that link, then scroll to the bottom and click the link marked "(zip)". Unzip the downloaded file, open the unzipped folder, then open the file named bitaddress.org.html inside your browser.
To use the webpage first wiggle your mouse around until the randomness % shows 100%. Afterwards click the "wallet details" button, enter your private key in the text box, then click the "view details" button next to the text box. The page should then show your private key in a range of different formats including WIF.