XBRL Tag issue in DateApprovalRevisionReport

Hi All,

When We are adding a new XBRL tag -
<ix:nonNumeric contextRef=“FY1_period” name=“uk-bus:DateApprovalRevisionReport” format=“ixt2:nocontent”>2022-01-19</ix:nonNumeric>

we got the below issue:-
Error: cvc-complex-type.2.2: Element ‘uk-bus:DateApprovalRevisionReport’ must have no element [children], and the value must be valid… XBRL Line: 131. XBRL Column: 100
Error: cvc-datatype-valid.1.2.1: ‘’ is not a valid value for ‘date’… XBRL Line: 131. XBRL Column: 100

Please help.
Thanks in advance.

Have you run your file through our validator please?