Back to your issue related to your screenshot of the ERROR-LOG…
Wix code SDK error: The link property that is passed to the link method cannot be set to the value "wix:video://[my file name]" as this is not a supported link type.
"wix:video://[my file name]"
If this was your VALUE for your BUTTON to be a LINK, then of course it was not right!
Instead it should be something like…
`wix:video://${my file name}`
And – “my file name” should be a string.