root:build_odl_topology ERROR: <type 'exceptions.KeyError'>

[foxroot55]

hello.
I configure odl boron sr2 and installed Pathman-Sr application, but this application didn't work.
I swap my url in pathman_ini.py on the correct table (bgp-example)
i had this log file
4255 2023-05-26 20:31:32.268 UTC root:_get_url INFO: status code: 200
4255 2023-05-26 20:31:32.271 UTC root:build_odl_topology ERROR: <type 'exceptions.KeyError'>
4255 2023-05-26 20:31:32.272 UTC root:getTopo INFO: Failed to get topo: could not reach odl-server?
4255 2023-05-26 20:31:32.272 UTC root:post INFO: {"response": [{"cause": "could not reach odl-server?", "option": "topo", "success": false}]}
4255 2023-05-26 20:31:32.273 UTC root:initialize INFO: Init 2 done - debug saved
4255 2023-05-26 20:31:32.273 UTC root:rest_interface_parser INFO: Commands Relieved: {u'option': u'list_all'}
4255 2023-05-26 20:31:32.281 UTC root:get_url INFO: Url get Status: 200
4255 2023-05-26 20:31:32.281 UTC root:listAllLsp INFO: list: [], formatted: []
4255 2023-05-26 20:31:32.281 UTC root:post INFO: {"response": [{"list": [], "option": "list_all", "success": true}]}

on the website i can see information about
Couldn't read topology data
Topology data is invalid.
Error code: GET_TOPOLOGY_INVALID
Possible resolution: Make sure that protocols match.
If you cannot fix the issue yourself, report the technician the error code and details of the failure (see the text box below).

Please, help mee what happened?