2020 vAT declaration does not match after re-entering invoices

Hello everyone,

I recently switched to Dexter and am re-entering all my accounting data, as I lost my data in my previous accounting programme. For 2020, I have re-entered all my sales invoices and purchase invoices, but now I see that my vAT declaration does not match in terms of amount.I submitted my vAT declaration for 2020 on the correct date and I can also find it. However, in Dexter, the amount is not quite right. I wonder how I can solve this. Should I leave it as it is and just upload the proof of the submitted return? Or does anyone have any suggestions for rectifying this difference?

Thank you in advance for your help!

Kind regards,

Farah