How do I fix the error 'Image "" failed to load: Unexpected URL'?

Whenever I go play my game to test it out, the Client output comes out as:

xx:xx:xx -- Image "" failed to load: Unexpected URL
xx:xx:xx -- Image "https://assetdelivery.roblox.com/v1/asset?id=0" failed to load: Request failed

This happens in the output of my Studio when I click test as well, although it disappeared somehow as I am writing this. The error still appears in the game itself. All of my plugins are clean and I have reinstalled Studio already. There are no decals in my game other than an NPC whose Image URL is "rbxasset://textures/face.png" which is the Roblox default face (so it should most definitely not be causing any errors). I checked this by removing the NPC itself. The game still outputs the error. What causes this error and how do I fix it? I've had it for a while on multiple games with multiple accounts.

Edit: The errors are not for a general Unexpected URL error/Request failed error. The errors itself has empty quotes and is giving the id of 0.

Clean up the baseplate, clean up everything, if you also have those problems, comment below, ill check every day. I'd think the Roblox Studio is bugged, try to reset your all Roblox Settings (Shortcut key Alt+s).

I have come to realize that this issue occurred when ROBLOX deleted their animations plugin and moved it over to the beta version on Studio. This meant that the plugin could not be recognized and therefore gave me these errors. I could remove it in order to clean my output, but ROBLOX does not allow people to remove deleted things from their inventory. Sadly, my output will remain this way until they allow us to do so, which is really stupid in my opinion. Thanks for the answers.