How to troubleshoot why my Splunk DB Connect 2 app does not load?

[vryzhko]

My app Splunk DB connect 2 does not load and or display on WEB. Plugin is configured default. Javahome (inputs.conf) and java_home (settings.conf) is true. Dbx2 and rpc logs is without Errors. Some Errors are in web_service.log
OS - Oracle EL 6.7
Splunk is running from user root privileges and SElinux is disabled.
Please help me to resolve this issue!
Thank you!

Logs from my Server (Were generated when opening the page 😞

[root@splunk splunk]# tail -f web_access.log web_service.log dbx2.log rpc.log
==> web_access.log <==
127.0.0.1 - infosecadmin [05/Jan/2016:17:21:39.601 +0200] "GET /en-US/app/search/license?hideEdit=true&hideTitle=true&hideSplunkBar=true&hideAppBar=true&hideFooter=true&targetTop=true HTTP/1.1" 200 3513 "https://xxx.xxx.xxx.xx:8000/en-US/app/launcher/home" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0" - 568bdf839a7f16c06f3790 1883ms
127.0.0.1 - infosecadmin [05/Jan/2016:17:21:41.533 +0200] "GET /en-US/config?autoload=1 HTTP/1.1" 304 - "https://xxx.xxx.xxx.xx:8000/en-US/app/search/license?hideEdit=true&hideTitle=true&hideSplunkBar=true&hideAppBar=true&hideFooter=true&targetTop=true" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0" - 568bdf85887f16c06f3ad0 9ms

==> web_service.log <==
2016-01-05 17:21:52,346 INFO    [568bdf90527f16c05d7d50] cached:77 - memoized decorator used on function <function getEntities at 0x7f16dc6ac848> with non hashable arguments

==> web_access.log <==
127.0.0.1 - infosecadmin [05/Jan/2016:17:21:52.321 +0200] "GET /en-US/app/splunk_app_db_connect/ HTTP/1.1" 303 128 "https://xxx.xxx.xxx.xx:8000/en-US/app/launcher/home" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0" - 568bdf90527f16c05d7d50 408ms

==> web_service.log <==
2016-01-05 17:21:52,758 INFO    [568bdf90be7f16c06a6450] cached:77 - memoized decorator used on function <function getEntities at 0x7f16dc6ac848> with non hashable arguments
2016-01-05 17:21:52,976 INFO    [568bdf90be7f16c06a6450] view:1034 - bypass module system fast path
2016-01-05 17:21:55,076 INFO    [568bdf90be7f16c06a6450] view:1098 - PERF - viewType=fastpath viewTime=1.9873s templateTime=0.331s

==> web_access.log <==
127.0.0.1 - infosecadmin [05/Jan/2016:17:21:52.744 +0200] "GET /en-US/app/splunk_app_db_connect/explorer HTTP/1.1" 200 1559 "https://xxx.xxx.xxx.xx:8000/en-US/app/launcher/home" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0" - 568bdf90be7f16c06a6450 2344ms
127.0.0.1 - infosecadmin [05/Jan/2016:17:21:55.153 +0200] "GET /en-US/config?autoload=1 HTTP/1.1" 304 - "https://xxx.xxx.xxx.xx:8000/en-US/app/splunk_app_db_connect/explorer" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0" - 568bdf93277f16c07833d0 7ms

==> web_service.log <==
2016-01-05 17:21:56,196 INFO    [568bdf94227f16c0783e10] error:129 - Masking the original 404 message: 'The path '/en-US/static/@f3e41e4b37b2/js/views/shared/documentcontrols/dialogs/permissions_dialog/ACL.js' was not found.' with 'Page not found!' for security reasons

==> web_access.log <==
127.0.0.1 - - [05/Jan/2016:17:21:56.134 +0200] "GET /en-US/static/@f3e41e4b37b2/js/views/shared/documentcontrols/dialogs/permissions_dialog/ACL.js HTTP/1.1" 404 3115 "https://xxx.xxx.xxx.xx:8000/en-US/app/splunk_app_db_connect/explorer" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0" - 568bdf94227f16c0783e10 63ms

==> web_service.log <==
2016-01-05 17:21:57,057 ERROR   [568bdf950c7f16c017a450] utility:49 - name=javascript, class=Splunk.Error, lineNumber=166, message=Error: Script error for: views/shared/documentcontrols/dialogs/permissions_dialog/ACL
http://requirejs.org/docs/errors.html#scripterror, fileName=https://xxx.xxx.xxx.xx:8000/en-US/static/@f3e41e4b37b2/js/contrib/require.js

==> web_access.log <==
127.0.0.1 - infosecadmin [05/Jan/2016:17:21:57.049 +0200] "POST /en-US/util/log/js HTTP/1.1" 200 279 "https://xxx.xxx.xxx.xx:8000/en-US/app/splunk_app_db_connect/explorer" "Mozilla/5.0 (Windows NT 6.3; WOW64; rv:43.0) Gecko/20100101 Firefox/43.0" - 568bdf950c7f16c017a450 9ms

[vryzhko · Accepted solution]

The DB Connect app was in conflict with state with another app - Sideview Utils.
Resolved with turning off the Sideview Utils (ver. 3.2.2).

[vryzhko]

Resolved!