Collabora Loads, But Never Loads Document

I have installed collabora using the command

docker run -t -d -p 9980:9980 -e "domain=localhost" --net host --cap-add MKNOD collabora/code

My nginx config looks like this

 location ^~ /loleaflet {
     proxy_pass https://localhost:9980;
     proxy_set_header Host $http_host;
 }

 # WOPI discovery URL
 location ^~ /hosting/discovery {
     proxy_pass https://localhost:9980;
     proxy_set_header Host $http_host;
 }

 # main websocket
 location ~ ^/lool/(.*)/ws$ {
     proxy_pass https://localhost:9980;
     proxy_set_header Upgrade $http_upgrade;
     proxy_set_header Connection "Upgrade";
     proxy_set_header Host $http_host;
     proxy_read_timeout 36000s;
 }

 # download, presentation and image upload
 location ~ ^/lool {
     proxy_pass https://localhost:9980;
     proxy_set_header Host $http_host;
 }

 # Admin Console websocket
 location ^~ /lool/adminws {
     proxy_pass https://localhost:9980;
     proxy_set_header Upgrade $http_upgrade;
     proxy_set_header Connection "Upgrade";
     proxy_set_header Host $http_host;
     proxy_read_timeout 36000s;
 }

Collabora seems to load, but the document does not. See image.

Here are my docker logs

Generating RSA private key, 2048 bit long modulus
Generating RSA private key, 2048 bit long modulus
Signature ok
subject=/C=DE/ST=BW/L=Stuttgart/O=Dummy Authority/CN=localhost
Getting CA Private Key
loolforkit version details: 3.0.0 - 81c8935
Init vcl
preload: merged unordf ucpchelp1 msforms vbaobj pcr vbaswobj sw XMergeBridge animcore hwp flash chartcore solver sc wpftcalc xof ucpcmis1 wpftdraw sd svgfilter evtatt ucpftp1 ucpgio1 graphicfilter wpftimpress placeware sdfilt sm pdffilter PresentationMinimizer rptxml protocolhandler ucpdav1 wpftwriter msword lwpft writerfilter t602filter xmlfa avmediaogl basctl binaryurp uuresolver scd chartcontroller kde4be1 ldapbe2 dba sdbt dbu dbmm deploymentgui migrationoo2 migrationoo3 xsltfilter sdd embobj emboleobj log expwrap odfflatxml textfd storagefd xmlfd frm fwl fwm io textconversiondlgs smd avmediagst_0_10 mozbootstrap oox scfilt OGLTrans slideshow proxyfac cairocanvas vclcanvas canvasfactory mtfrenderer simplecanvas oglcanvas rptui rpt res dlgprov basprov stringresource dbaxml jdbc mork odbc sdbc2 calc dbase evoab firebird_sdbc flat writer xsec_xmlsec reflection bootstrap introspection invocation invocadapt javaloader javavm namingservice stocservices cmdmail syssh cached1 ucphier1 ucpimage ucppkg1 srtrs1 ucptdoc1 xsltdlg swd cui bib guesslang offacc scn scriptframe ScriptProviderForJava ScriptFramework dbpool2 hsqldb xmlsecurity analysis date pricing fps_office i18nsearch wizards.agenda.CallWizard wizards.fax.CallWizard form wizards.letter.CallWizard query report table wizards.web.CallWizard xsec_fw vbaevents PresenterScreen pdfimport losessioninstall reportbuilder smoketest abp dbp mysql  ucpext hyphen spell lnth mailmerge for ctl passwordcontainer svgio updatefeed
Preloading dictionaries: de_DE en_US fr_FR it_IT nl_NL pl_PL pt_BR ru_RU de_CH en_GB pt_PT de_AT es_ES
Preload icons
Preload languages
office version details: { "ProductName": "Collabora Office", "ProductVersion": "5.3", "ProductExtension": ".10.36", "BuildId": "bb5e55d407c013b5b59459d9551268924cd7f785" }
wsd-00025-00026 09:10:11.351066 [ prisoner_poll ] WRN  ForKit not responsive for 16752 ms forking 1 children. Resetting.| wsd/LOOLWSD.cpp:350
wsd-00025-00033 09:11:22.013871 [ websrv_poll ] WRN  WOPI host did not pass optional access_token_ttl| wsd/FileServer.cpp:471
wsd-00025-00033 09:12:05.924490 [ websrv_poll ] WRN  WOPI host did not pass optional access_token_ttl| wsd/FileServer.cpp:471
wsd-00025-00033 09:12:37.571654 [ websrv_poll ] WRN  WOPI host did not pass optional access_token_ttl| wsd/FileServer.cpp:471

Hi,

I have the same error. I changed from Apache to Nginx but now I get the same error message.