On webpage show metrisc only occasionally

[fatal56ty]

On page with metrics x.x.x.x:49090/metrics show mostly default # HELP python_gc_objects_collected_total Objects collected during gc TYPE python_gc_objects_collected_total counter python_gc_objects_collected_total{generation="0"} 526.0 python_gc_objects_collected_total{generation="1"} 5.0 python_gc_objects_collected_total{generation="2"} 0.0

and no metrics of router, after page refresh sometimes show full metrics of router, after next page refresh again abowe default metrics.
Command mktxp export show this:
Connecting to router [email protected] 2025-01-19 16:28:45 Connection to router [email protected] has been established Connecting to router [email protected] 2025-01-19 16:28:46 Connection to router [email protected] has been established 2025-01-19 16:28:46 Running HTTP metrics server on: 0.0.0.0:49090 Traceback (most recent call last): File "/usr/local/bin/mktxp", line 8, in <module> sys.exit(main()) ~~~~^^ File "/usr/local/lib/python3.13/site-packages/mktxp/cli/dispatch.py", line 108, in main MKTXPDispatcher().dispatch() ~~~~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/local/lib/python3.13/site-packages/mktxp/cli/dispatch.py", line 39, in dispatch self.start_export(args) ~~~~~~~~~~~~~~~~~^^^^^^ File "/usr/local/lib/python3.13/site-packages/mktxp/cli/dispatch.py", line 89, in start_export ExportProcessor.start() ~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/local/lib/python3.13/site-packages/mktxp/flow/processor/base_proc.py", line 40, in start serve(make_wsgi_app(), listen = config_handler.system_entry.listen) ~~~~~^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ File "/usr/local/lib/python3.13/site-packages/waitress/__init__.py", line 13, in serve server = _server(app, **kw) File "/usr/local/lib/python3.13/site-packages/waitress/server.py", line 78, in create_server last_serv = TcpWSGIServer( application, ...<5 lines>... sockinfo=sockinfo, ) File "/usr/local/lib/python3.13/site-packages/waitress/server.py", line 243, in __init__ self.bind_server_socket() ~~~~~~~~~~~~~~~~~~~~~~~^^ File "/usr/local/lib/python3.13/site-packages/waitress/server.py", line 364, in bind_server_socket self.bind(sockaddr) ~~~~~~~~~^^^^^^^^^^ File "/usr/local/lib/python3.13/site-packages/waitress/wasyncore.py", line 379, in bind return self.socket.bind(addr) ~~~~~~~~~~~~~~~~^^^^^^ OSError: [Errno 98] Address in use

Mktxp is last version, docker install, its o containter with own IP adress and only this container run on this.