There does indeed seem to be a problem in your resource definition.
The validationQuery attribute of the Resource element, which is an optional attribute used to validate the resource (connection) when it is initialized and should be a valid statement for the database in question, is defined in your case as call now() - which is not valid sql syntax in MySQL.
Instead, you can use any other valid query, e.g. select now(), or indeed drop the validationQuery attribute altogether.
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