@Nullable
    private static Pair<String, Long> getLastLoginError(@StringRes final int connectorPrefId, @StringRes final int timePrefId) {
        if (connectorPrefId != 0 && timePrefId != 0) {
            final Pair<String, Long> data = new Pair<>(getString(connectorPrefId, ""), getLong(timePrefId, 0));
            return StringUtils.isBlank(data.first) || data.second == 0 ? null : data;
        }
        return null;
    }
Force set the plain text log preference

@param plainLogs wanted or not
main/src/main/java/cgeo/geocaching/settings/Settings.java