**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).
}
    LOCK(spk_man->cs_KeyStore);
    return spk_man->ImportScripts(scripts, timestamp);
}
bool CWalletImportPrivKeys(const stdmap<CKeyID, CKey>& privkey_map, const int64_t timestamp)
{
    auto spk_man = GetLegacyScriptPubKeyMan();
    if (!spk_man) {
        return false;
    }
    LOCK(spk_man->cs_KeyStore);
    return spk_man->ImportPrivKeys(privkey_map, timestamp);
}
bool CWalletImportPubKeys(const stdvector<CKeyID>& ordered_pubkeys, const stdmap<CKeyID, CPubKey>& pubkey_map, const stdmap<CKeyID, stdpair<CPubKey, KeyOriginInfo>>& key_origins, const bool add_keypool, const bool internal, const int64_t timestamp)
{
    auto spk_man = GetLegacyScriptPubKeyMan();
    if (!spk_man) {
        return false;
    }
    LOCK(spk_man->cs_KeyStore);
    return spk_man->ImportPubKeys(ordered_pubkeys, pubkey_map, key_origins, add_keypool, internal, timestamp);
}
bool CWalletImportScriptPubKeys(const stdstring& label, const stdset<CScript>& script_pub_keys, const bool have_solving_data, const bool apply_label, const int64_t timestamp)
{
    auto spk_man = GetLegacyScriptPubKeyMan();
    if (!spk_man) {
        return false;
    }
    LOCK(spk_man->cs_KeyStore);
    if (!spk_man->ImportScriptPubKeys(script_pub_keys, have_solving_data, timestamp)) {