「自動生成に失敗しました」というエラーでコミットが失敗するSDWAN構成"

Firewall> less mp-log configd.log
......
Error:  pan_cfg_transform_fullpath(pan_cfg_utils.c:6828): error generating transform /opt/pancfg/mgmt/factory/tplrenamemapfrompushreq.xsl
Error:  pan_cfg_tpl_renamemap_from_request(pan_cfg_templates.c:4986): failed to generate tpl rename map from request 
Error:  pan_cfg_pushtpl_autogen_config_merge(pan_cfg_templates.c:6810): Zones node or zone map hash not found for sd-wan zone mapping
  File "/opt/pancfg/mgmt/transforms/cluster-gen.py", line 1529, in 
    if xml_to_file(gen_auto_config(root, tpl_config), xml_outfile, True) < 0:
  File "/opt/pancfg/mgmt/transforms/cluster-gen.py", line 1343, in gen_auto_config
    dn_node.gen_loopback_interface(loopback_name, local_info.bgp_info.loopback_address, config_node, vr_node.vr_interface_node)
  File "/opt/pancfg/mgmt/transforms/cluster-gen.py", line 816, in gen_loopback_interface
    xml_add_child(xml_get_node_by_xpath(config_node.zone_node[2], "./network/layer3"), loopback_member)
  File "/opt/pancfg/mgmt/transforms/cluster-gen.py", line 153, in xml_add_child
    root.append(node)
Error:  pan_cfg_pushtpl_autogen_config_merge(pan_cfg_templates.c:6856): Failed to auto generate SD-wan config:
'NoneType' object has no attribute 'append'
***Traceback***
Failed to execute cluster-gen.py
....