Hello, @huy-lv
I have attempted to upload the latest 1.3.0 Jitsi plugin through the System Console:
{"level":"debug","ts":1591666313.759843,"caller":"web/handlers.go:85","msg":"Received HTTP request","method":"POST","url":"/api/v4/users/status/ids","request_id":"bypqa5c3ntdw3kghsfj1nzpk9r"}
{"level":"debug","ts":1591666322.4742205,"caller":"web/handlers.go:85","msg":"Received HTTP request","method":"POST","url":"/api/v4/plugins","request_id":"9c3nmd8fh7nbpf1m96zidqnwnr"}
{"level":"debug","ts":1591666324.1313791,"caller":"web/handlers.go:85","msg":"Received HTTP request","method":"GET","url":"/api/v4/plugins","request_id":"fj3s3tsctb86bc8rx6ud5m3mcy"}
{"level":"debug","ts":1591666324.632894,"caller":"wsapi/websocket_handler.go:25","msg":"Websocket request","action":"user_update_active_status"}
After configuring the Jitsi Server URL and enable the plugin, it was successful:
{"level":"debug","ts":1591666473.4777794,"caller":"web/handlers.go:85","msg":"Received HTTP request","method":"POST","url":"/api/v4/plugins/jitsi/enable","request_id":"kfactbszfj8x5nfhsiqjz4fcxh"}
{"level":"debug","ts":1591666473.4865808,"caller":"jobs/schedulers.go:190","msg":"Schedulers received config change."}
{"level":"debug","ts":1591666473.4903595,"caller":"jobs/schedulers.go:172","msg":"Next run time for scheduler","scheduler_name":"EnterpriseLdapSync","next_runtime":"2020-06-09 01:38:39 +0000 UTC"}
{"level":"debug","ts":1591666473.4930847,"caller":"jobs/schedulers.go:172","msg":"Next run time for scheduler","scheduler_name":"MigrationsScheduler","next_runtime":"<nil>"}
{"level":"debug","ts":1591666473.5002787,"caller":"jobs/schedulers.go:172","msg":"Next run time for scheduler","scheduler_name":"PluginsScheduler","next_runtime":"2020-06-10 01:34:33.500267344 +0000 UTC m=+87779.368952140"}
{"level":"debug","ts":1591666473.5051196,"caller":"plugin/hclog_adapter.go:51","msg":"starting plugin","plugin_id":"jitsi","wrapped_extras":"pathplugins/jitsi/server/dist/plugin-linux-amd64args[plugins/jitsi/server/dist/plugin-linux-amd64]"}
{"level":"debug","ts":1591666473.5060902,"caller":"plugin/hclog_adapter.go:51","msg":"plugin started","plugin_id":"jitsi","wrapped_extras":"pathplugins/jitsi/server/dist/plugin-linux-amd64pid2805"}
{"level":"debug","ts":1591666473.506802,"caller":"plugin/hclog_adapter.go:51","msg":"waiting for RPC address","plugin_id":"jitsi","wrapped_extras":"pathplugins/jitsi/server/dist/plugin-linux-amd64"}
{"level":"debug","ts":1591666473.5119104,"caller":"plugin/hclog_adapter.go:51","msg":"plugin address","plugin_id":"jitsi","wrapped_extras":"networkunixaddress/tmp/plugin106206643timestamp2020-06-09T01:34:33.511Z"}
{"level":"debug","ts":1591666473.5131638,"caller":"plugin/hclog_adapter.go:51","msg":"using plugin","plugin_id":"jitsi","wrapped_extras":"version1"}
{"level":"debug","ts":1591666473.5188756,"caller":"jobs/workers.go:108","msg":"Workers received config change."}
{"level":"debug","ts":1591666473.5403306,"caller":"jobs/workers.go:108","msg":"Workers received config change."}
{"level":"debug","ts":1591666473.5414236,"caller":"jobs/schedulers.go:190","msg":"Schedulers received config change."}
{"level":"debug","ts":1591666473.5461411,"caller":"jobs/schedulers.go:172","msg":"Next run time for scheduler","scheduler_name":"EnterpriseLdapSync","next_runtime":"2020-06-09 01:38:39 +0000 UTC"}
{"level":"debug","ts":1591666473.5477157,"caller":"jobs/schedulers.go:172","msg":"Next run time for scheduler","scheduler_name":"MigrationsScheduler","next_runtime":"<nil>"}
{"level":"debug","ts":1591666473.549385,"caller":"jobs/schedulers.go:172","msg":"Next run time for scheduler","scheduler_name":"PluginsScheduler","next_runtime":"2020-06-10 01:34:33.54937765 +0000 UTC m=+87779.418062411"}
I have the same set of permission on my end as well:
ahmaddanial@mattermost:/home/# ls -lAh /opt/mattermost/plugins/ /opt/mattermost/prepackaged_plugins/
/opt/mattermost/plugins/:
total 8.0K
drwxr--r-- 5 mattermost mattermost 4.0K Jun 9 01:11 com.mattermost.nps
drwxr--r-- 4 mattermost mattermost 4.0K Jun 9 01:32 jitsi
/opt/mattermost/prepackaged_plugins/:
total 99M
-rw-rw-r-- 1 mattermost mattermost 8.7M May 14 12:20 mattermost-plugin-antivirus-v0.1.2-linux-amd64.tar.gz
-rw-rw-r-- 1 mattermost mattermost 566 May 14 12:20 mattermost-plugin-antivirus-v0.1.2-linux-amd64.tar.gz.sig
-rw-rw-r-- 1 mattermost mattermost 8.7M May 14 12:20 mattermost-plugin-autolink-v1.1.2-linux-amd64.tar.gz
-rw-rw-r-- 1 mattermost mattermost 566 May 14 12:20 mattermost-plugin-autolink-v1.1.2-linux-amd64.tar.gz.sig
-rw-rw-r-- 1 mattermost mattermost 8.8M May 14 12:20 mattermost-plugin-aws-SNS-v1.0.2-linux-amd64.tar.gz
-rw-rw-r-- 1 mattermost mattermost 566 May 14 12:20 mattermost-plugin-aws-SNS-v1.0.2-linux-amd64.tar.gz.sig
-rw-rw-r-- 1 mattermost mattermost 8.8M May 14 12:20 mattermost-plugin-custom-attributes-v1.0.2-linux-amd64.tar.gz
-rw-rw-r-- 1 mattermost mattermost 566 May 14 12:20 mattermost-plugin-custom-attributes-v1.0.2-linux-amd64.tar.gz.sig
-rw-rw-r-- 1 mattermost mattermost 9.7M May 14 12:20 mattermost-plugin-github-v0.11.0-linux-amd64.tar.gz
-rw-rw-r-- 1 mattermost mattermost 566 May 14 12:20 mattermost-plugin-github-v0.11.0-linux-amd64.tar.gz.sig
-rw-rw-r-- 1 mattermost mattermost 9.3M May 14 12:20 mattermost-plugin-gitlab-v1.0.1-linux-amd64.tar.gz
-rw-rw-r-- 1 mattermost mattermost 566 May 14 12:20 mattermost-plugin-gitlab-v1.0.1-linux-amd64.tar.gz.sig
-rw-rw-r-- 1 mattermost mattermost 9.0M May 14 12:20 mattermost-plugin-jenkins-v1.0.0-linux-amd64.tar.gz
-rw-rw-r-- 1 mattermost mattermost 566 May 14 12:20 mattermost-plugin-jenkins-v1.0.0-linux-amd64.tar.gz.sig
-rw-rw-r-- 1 mattermost mattermost 10M May 14 12:20 mattermost-plugin-jira-v2.3.2-linux-amd64.tar.gz
-rw-rw-r-- 1 mattermost mattermost 566 May 14 12:20 mattermost-plugin-jira-v2.3.2-linux-amd64.tar.gz.sig
-rw-rw-r-- 1 mattermost mattermost 8.9M May 14 12:20 mattermost-plugin-nps-v1.0.4-linux-amd64.tar.gz
-rw-rw-r-- 1 mattermost mattermost 566 May 14 12:20 mattermost-plugin-nps-v1.0.4-linux-amd64.tar.gz.sig
-rw-rw-r-- 1 mattermost mattermost 8.6M May 14 12:20 mattermost-plugin-welcomebot-v1.1.1-linux-amd64.tar.gz
-rw-rw-r-- 1 mattermost mattermost 566 May 14 12:20 mattermost-plugin-welcomebot-v1.1.1-linux-amd64.tar.gz.sig
-rw-rw-r-- 1 mattermost mattermost 8.9M May 14 12:20 mattermost-plugin-zoom-v1.3.0-linux-amd64.tar.gz
-rw-rw-r-- 1 mattermost mattermost 566 May 14 12:20 mattermost-plugin-zoom-v1.3.0-linux-amd64.tar.gz.sig
Since the error complains about permission error, may I know if you have the NPS and januss plugin enabled too? If not, can you try to enable them and confirm that the error also complains about permission?
Side note: The NPS plugin will require you to enable Enable Diagnostics and Error Reporting from System Console > Logging section.