LUA error blocks http server
[worker.background] error: /usr/share/lua/5.1/http/h2_stream.lua:88: invalid state progression ('closed' to 'closed') stack traceback:
[C]: in function 'error'
/usr/share/lua/5.1/http/h2_stream.lua:88: in function 'set_state'
/usr/share/lua/5.1/http/h2_stream.lua:565: in function 'handler'
/usr/share/lua/5.1/http/h2_connection.lua:204: in function 'handle_frame'
/usr/share/lua/5.1/http/h2_connection.lua:243: in function 'step'
/usr/share/lua/5.1/http/h2_connection.lua:352: in function 'get_next_incoming_stream'
/usr/share/lua/5.1/http/server.lua:147: in function </usr/share/lua/5.1/http/server.lua:127>
[worker.background] error: /usr/share/lua/5.1/http/h2_stream.lua:88: invalid state progression ('closed' to 'closed') stack traceback:
[C]: in function 'error'
/usr/share/lua/5.1/http/h2_stream.lua:88: in function 'set_state'
/usr/share/lua/5.1/http/h2_stream.lua:565: in function 'handler'
/usr/share/lua/5.1/http/h2_connection.lua:204: in function 'handle_frame'
/usr/share/lua/5.1/http/h2_connection.lua:243: in function 'step'
/usr/share/lua/5.1/http/h2_connection.lua:352: in function 'get_next_incoming_stream'
/usr/share/lua/5.1/http/server.lua:147: in function </usr/share/lua/5.1/http/server.lua:127>
I am trying to setup Lets encrypt+clientCA with traefik in front of webmgmt of knot resolver. It works for first two browser opened sessions and then these errors appear and web server gets blocked...