**Expected behavior**
It is expected that Bitcoin Core is not shutdown automatically during startup. Moreover, it should be possible to set transaction fee at 0.

**Actual behavior**
![Bitcoin Core Error mintxfee](https://user-images.githubusercontent.com/111286121/210274894-e91adf7f-43f7-4c3f-b799-222c00dc34a0.png)

**To reproduce**

1) Click bitcoin-qt.exe.

**System information**

1) A wallet that contained unspent funds was opened previously.
2) The bitcoin.conf file contains "mintxfee=0".
3) Bitcoin Core 24.0.1 official binary for Windows (portable).
}
    }
    return nullptr;
}
stdvector<WalletDescriptor> CWalletGetWalletDescriptors(const CScript& script) const
{
    stdvector<WalletDescriptor> descs;
    for (const auto spk_man GetScriptPubKeyMans(script)) {
        if (const auto desc_spk_man = dynamic_cast<DescriptorScriptPubKeyMan*>(spk_man)) {
            LOCK(desc_spk_man->cs_desc_man);
            descs.push_back(desc_spk_man->GetWalletDescriptor());
        }
    }
    return descs;
}
LegacyScriptPubKeyMan* CWalletGetLegacyScriptPubKeyMan() const
{
    if (IsWalletFlagSet(WALLET_FLAG_DESCRIPTORS)) {
        return nullptr;
    }
    // Legacy s only have one ScriptPubKeyMan which is a LegacyScriptPubKeyMan.
    // Everything in m_internal_spk_managers and m_external_spk_managers point to the same legacyScriptPubKeyMan.
    auto it = m_internal_spk_managers.find(OutputTypeLEGACY);
    if (it == m_internal_spk_managers.end()) return nullptr;
    return dynamic_cast<LegacyScriptPubKeyMan*>(it->second);
}
LegacyScriptPubKeyMan* CWalletGetOrCreateLegacyScriptPubKeyMan()
{
    SetupLegacyScriptPubKeyMan();
    return GetLegacyScriptPubKeyMan();