BR-S-05: An invoice line uses the Standard rated VAT category (BT-151) but its VAT rate…
What it means
An invoice line uses the Standard rated VAT category (BT-151) but its VAT rate (BT-152) is zero or missing -- a standard rate must be greater than zero.
How to fix it
Set BT-152 to the actual standard VAT rate percentage that applies (e.g. 20), or change the VAT category if the line is genuinely zero-rated or exempt.