Using Velo to update an Admin-only Collection while serving a member's request

Move the query to the backend (in a js w file).
and suppress the auth.
For example:
return wixData.query(‘Admin-Collection’).find({suppressAuth:true})

or:
return wixData.update(‘Admin-Collection’, item,{suppressAuth:true})

Import the function to the front-end and call it from there (it will run on the backend and return the results to the front-end (don’t forget to use return before every data query in the backend.)