it doesnt recognize an extension block

[blueproductionscontact-jpg]

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this is the error it's giving me.
im making an amv
here's how it's supposed to look
https://files.catbox.moe/ks4gvd.webm
here's how it actually looks
https://files.catbox.moe/cov2ae.webm
every script in the chorus sprite is gone
here's what its supposed to look like

just picture this screenshot with no code
thats what it looks like and is

[MobileFriendlyAllay]

I am not really a moderator nor a coding expert (I want to be a coding expert), but from what I know, if there's an unknown stack block error with a block in an extension, that problem is usually either a problem with the extension itself (maybe slightly-corrupted JSON block definitions) or the block probably used to exist in the extension but the extension was then probably modified so they either removed the block, or made modifications to it changing the block ID. Those are the 2 possibilities I have.

[Elliotoldroblox]

@JeremyGamer13 needs to fix this