I have fixed it! Thank you cubecolour for your link, it has saved me!
Since it’s solved, thank you for everyone who tried helping!
Yes, I indeed changed the WordPress URL & site URL to the https version of the original URLs. I was using the wordpress editor online, so I don’t have the ability to change anything online. Sadly I have never edited anything offline, so I don’t even know how to start.
Thank you for the help!
