Wrong VAT amount sent to HMRC

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Good morning! My husband decided that entering the JEs is an easy job and did few himself. I have completed the year 2023/24, without noticing the £1.67 VAT liability. His company is not VAT registered and currently dissolved. I tried editing, deleting and revercing the JE, but it is in previous year and the VAT report is with status  "sent". The company is dissolved. What  can I do, to fix the mistake, please?