It's working for me on Ubuntu 18. You need to include the log file from oxTrust, i.e. `/opt/gluu/jetty/identity/logs/oxTrust.log` and that might provide a clue.

Unfortunately, nothing related to this specific error is appearing in oxtrust logs. ``` 2020-08-13 15:10:31,116 INFO [qtp572593338-14] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:407) - user uid:admin 2020-08-13 15:10:31,117 INFO [qtp572593338-14] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:124) - Authenticating user 'admin' 2020-08-13 15:10:31,269 INFO [qtp572593338-14] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:139) - User 'admin' authenticated successfully 2020-08-13 15:10:34,153 INFO [qtp572593338-13] [org.gluu.oxtrust.service.ConfigurationService] (ConfigurationService.java:255) - Starting App version 4.2.0.Final 2020-08-13 15:51:58,379 INFO [qtp572593338-14] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:285) - authorizationCode : c28cfb90-82a0-4c9f-af65-e79bca4bec9c 2020-08-13 15:51:58,379 INFO [qtp572593338-14] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:288) - scopes : openid user_name email 2020-08-13 15:51:58,379 INFO [qtp572593338-14] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:291) - clientID : 1001.1b2e58e3-db3d-426c-9637-a85d8066d126 2020-08-13 15:51:58,380 INFO [qtp572593338-14] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:320) - Sending request to token endpoint 2020-08-13 15:51:58,380 INFO [qtp572593338-14] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:322) - redirectURI : https://redacted/identity/authcode.htm 2020-08-13 15:51:58,515 INFO [qtp572593338-14] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:345) - Session validation successful. User is logged in 2020-08-13 15:51:58,612 INFO [qtp572593338-14] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:407) - user uid:admin 2020-08-13 15:51:58,612 INFO [qtp572593338-14] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:124) - Authenticating user 'admin' 2020-08-13 15:51:58,690 INFO [qtp572593338-14] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:139) - User 'admin' authenticated successfully 2020-08-13 15:51:59,627 INFO [qtp572593338-21] [org.gluu.oxtrust.service.ConfigurationService] (ConfigurationService.java:255) - Starting App version 4.2.0.Final 2020-08-13 15:52:42,832 INFO [qtp572593338-17] [org.gluu.oxtrust.service.ConfigurationService] (ConfigurationService.java:255) - Starting App version 4.2.0.Final 2020-08-13 15:53:38,785 INFO [qtp572593338-21] [org.gluu.oxtrust.service.ConfigurationService] (ConfigurationService.java:255) - Starting App version 4.2.0.Final 2020-08-13 15:54:22,032 INFO [qtp572593338-20] [org.gluu.oxtrust.service.ConfigurationService] (ConfigurationService.java:255) - Starting App version 4.2.0.Final 2020-08-13 15:55:15,380 INFO [qtp572593338-21] [org.gluu.oxtrust.service.ConfigurationService] (ConfigurationService.java:255) - Starting App version 4.2.0.Final 2020-08-13 15:58:34,994 INFO [qtp572593338-17] [org.gluu.oxtrust.service.ConfigurationService] (ConfigurationService.java:255) - Starting App version 4.2.0.Final 2020-08-13 17:22:25,172 INFO [qtp572593338-19] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:285) - authorizationCode : 575048c4-2244-43f2-a719-0b2852745248 2020-08-13 17:22:25,172 INFO [qtp572593338-19] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:288) - scopes : openid user_name email 2020-08-13 17:22:25,173 INFO [qtp572593338-19] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:291) - clientID : 1001.1b2e58e3-db3d-426c-9637-a85d8066d126 2020-08-13 17:22:25,173 INFO [qtp572593338-19] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:320) - Sending request to token endpoint 2020-08-13 17:22:25,173 INFO [qtp572593338-19] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:322) - redirectURI : https://redacted/identity/authcode.htm 2020-08-13 17:22:25,262 INFO [qtp572593338-19] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:345) - Session validation successful. User is logged in 2020-08-13 17:22:25,324 INFO [qtp572593338-19] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:407) - user uid:admin 2020-08-13 17:22:25,324 INFO [qtp572593338-19] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:124) - Authenticating user 'admin' 2020-08-13 17:22:25,330 INFO [qtp572593338-19] [org.gluu.oxtrust.action.Authenticator] (Authenticator.java:139) - User 'admin' authenticated successfully 2020-08-13 17:22:28,691 INFO [qtp572593338-19] [org.gluu.oxtrust.service.ConfigurationService] (ConfigurationService.java:255) - Starting App version 4.2.0.Final 2020-08-13 17:23:11,160 INFO [qtp572593338-718] [org.gluu.oxtrust.service.ConfigurationService] (ConfigurationService.java:255) - Starting App version 4.2.0.Final 2020-08-13 17:24:20,838 INFO [qtp572593338-14] [org.gluu.oxtrust.service.ConfigurationService] (ConfigurationService.java:255) - Starting App version 4.2.0.Final [root@redacted logs]# ```

Hi, Rui. Could you share the logo you try to upload with us?

For example: https://obconnect.io/wp-content/uploads/2020/06/logo_sticky_retina.png