Error occurring through tcode AW01N on SAP S/4 Hana

Dear Gurus,

we are implementing SAP S/4 Hana premise edition to a new customer but we are facing an error regarding asset accounting, when we open the asset explorer, tcode AW01N:

ledger group is not assigned to an accounting principle

Error message: FAGL_LEDGER_CUST167

This is a green field project, we didn't do an upgrade from ECC.

We didn't expect such error because we have correctly assigned the accounting principle to ledger groups, and we have correctly mantained the accounting principle and ledger in the depreciation area's customizing.

Anyone has experienced this error? Any idea on how could we solve it?

Thanks