Fixing this requires SOLDERING, no ways around this.
You don't need a tutorial, open up the keyboard, and everything is honestly straight forward and noob proof.
If you are level 10 super noob, then maybe just call up warranty
Go order a new switch now from wasdkeyboards, it's under keyboard parts.
You can temporarily switch the scroll lock for the E key, while you're waiting for your replacement switch to come in the mail.
Make sure you have soldering braid/wick, AND of course a soldering iron + solder.
If you require someone else to do this. Either ask your dad, your mom, brother, or the asian kids down the block.
Open up the keyboard, first, inspect whether or not the problem is due to a poor solder joint. If that's the case, then simply touching it up is enough.
If this is not the problem, then you'd remove the scroll'lock switch and replace the broken E switch, Just temporarily leave the scroll lock switch blank. When the replacement switch comes in the mail, put that switch into the scroll lock place.
The keyboard should still be fully usable with a blank scroll lock slot when you're waiting for your replacement switch.