Cannot upload a file to my addon

[Dridzt]

Using the wowinterface web UI to add a file to my addon (BastionEPGP in this occasion) I'm greeted with a cloudflare captcha, after I pass the captcha, wowinterface responds with

Cannot edit file - No ID was specified!

Chrome based browser.

Edit to add, just to make sure it's not interference from a browser plugin I disabled both plugin and built-in blockers.