Collabora online Error using powerpoint

Server
1

Ubuntu 18.04 lts
Owncloud 10.0.10

Works fine when I open doc files and excel
but when I open the existing powerpoint or new one and I use fullscreen presentation I get white page then the powerpoint slides freeze and dosent go forward or back so I need to exit the powerpoint. I did check the log container, here

wsd-00031-00041 2019-06-01 20:56:47.973767 [ websrv_poll ] WRN client - server version mismatch, disabling browser cache.| wsd/FileServer.cpp:279
wsd-00031-00041 2019-06-01 20:57:19.317319 [ websrv_poll ] WRN client - server version mismatch, disabling browser cache.| wsd/FileServer.cpp:279
wsd-00031-00041 2019-06-01 21:07:22.273440 [ websrv_poll ] WRN client - server version mismatch, disabling browser cache.| wsd/FileServer.cpp:279
wsd-00031-00041 2019-06-01 21:07:38.436648 [ websrv_poll ] WRN client - server version mismatch, disabling browser cache.| wsd/FileServer.cpp:279
wsd-00031-00041 2019-06-01 21:12:11.644865 [ websrv_poll ] WRN client - server version mismatch, disabling browser cache.| wsd/FileServer.cpp:279
wsd-00031-00041 2019-06-01 21:16:21.741114 [ websrv_poll ] WRN DocBroker with docKey [/index.php/apps/richdocuments/wopi/files/10723_ockky91dlq2l] that is marked to be destroyed. Rejecting client request.| wsd/LOOLWSD.cpp:1674
wsd-00031-00041 2019-06-01 21:16:21.745885 [ websrv_poll ] ERR Error while handling Client WS Request: Failed to create DocBroker with docKey [/index.php/apps/richdocuments/wopi/files/10723_ockky91dlq2l].| wsd/LOOLWSD.cpp:2698
wsd-00031-00041 2019-06-01 21:16:22.773318 [ websrv_poll ] WRN DocBroker with docKey [/index.php/apps/richdocuments/wopi/files/10723_ockky91dlq2l] that is marked to be destroyed. Rejecting client request.| wsd/LOOLWSD.cpp:1674
wsd-00031-00041 2019-06-01 21:16:22.773405 [ websrv_poll ] ERR Error while handling Client WS Request: Failed to create DocBroker with docKey [/index.php/apps/richdocuments/wopi/files/10723_ockky91dlq2l].| wsd/LOOLWSD.cpp:2698
wsd-00031-00041 2019-06-01 21:16:23.797381 [ websrv_poll ] WRN DocBroker with docKey [/index.php/apps/richdocuments/wopi/files/10723_ockky91dlq2l] that is marked to be destroyed. Rejecting client request.| wsd/LOOLWSD.cpp:1674
wsd-00031-00041 2019-06-01 21:16:23.797504 [ websrv_poll ] ERR Error while handling Client WS Request: Failed to create DocBroker with docKey [/index.php/apps/richdocuments/wopi/files/10723_ockky91dlq2l].| wsd/LOOLWSD.cpp:2698
wsd-00031-00041 2019-06-01 21:18:34.393337 [ websrv_poll ] WRN client - server version mismatch, disabling browser cache.| wsd/FileServer.cpp:279
wsd-00031-00344 2019-06-01 21:18:51.781782 [ docbroker_00f ] WRN Client session [0030] not found to forward message: o15563 statechanged: .uno:ModifiedStatus=false| wsd/DocumentBroker.cpp:1798
wsd-00031-00041 2019-06-01 21:19:23.754189 [ websrv_poll ] WRN client - server version mismatch, disabling browser cache.| wsd/FileServer.cpp:279
wsd-00031-00359 2019-06-01 21:19:30.288344 [ docbroker_010 ] WRN Client session [0033] not found to forward message: o16083 statechanged: .uno:ModifiedStatus=false| wsd/DocumentBroker.cpp:1798

2

I restarted docker
On owncloud office I get error now “Collabora Online unknown error: Server error response [url] https://domain.domain.com/hosting/discovery [status code] 503 [reason phrase] Service Unavailable”

Please contact the “https://domain.domain.com” administrator.

here is apache2 log
[Sun Jun 02 00:00:49.811707 2019] [proxy_http:error] [pid 4365] [client xxx.xxx.xxx.xxx:46100] AH01114: HTTP: failed to make connection to backend: 127.0.0.1
[Sun Jun 02 00:00:49.908226 2019] [proxy:error] [pid 548] (111)Connection refused: AH00957: HTTPS: attempt to connect to 127.0.0.1:9980 (127.0.0.1) failed
[Sun Jun 02 00:00:49.908281 2019] [proxy_http:error] [pid 548] [client xxx.xxx.xxx.xxx:46106] AH01114: HTTP: failed to make connection to backend: 127.0.0.1

3

Can you check that your Collabora instance/service/docker container is still running and is listening on the port? And afterwards that Collabora is still accessible via ping/telnet/browser.