Vault tooltip error


After creating a vault, if you mouse over the toolbar, the following error occurs.
Why is this??

Uncaught TypeError: Cannot read properties of undefined (reading ‘tooltip’)
at HTMLUListElement.tooltip (vault.js:13)

I wonder how to solve it.


COuld you please, provide an example, where the problem could be reconstructed locally.
As the following one:
seem to work correctly.