We checked your domain and couldn't find the TXT record. Please refer to the screenshot below.
Please try re-adding the TXT record and testing it.
Since your domain is hosted by a third party, please check with your domain provider to find out why the TXT record is not delegating after being added.
Once the TXT record is added, your domain validation will pass successfully.
Hope the above answer helps! Please let us know do you have any further queries.
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