We migrate our instance to the latest version (10.2.1)

From which version ?

What went wrong?

I don't know, I'm not a soothsayer.
Maybe with some logs, screenshots, migration process explanation, other technical migration information, ...
 

Of course, sorry!

We migrate from version 10.0.6 to 10.2.1. 

Here some screenshots of the menu showing the impossibility to access the views :
 

Here are the log when I try to create a Team with the Project Affectation button :** ERROR ** [V10.2.1] HACK ================================================================
** ERROR ** [V10.2.1] Try to hack detected
** ERROR ** [V10.2.1] Source Code = checkValidAccessForUser() Reject for Team - no access to screen 'Team'
** ERROR ** [V10.2.1] QUERY_STRING = objectClass=Team&objectType=&objectClient=&budgetParent=&objectElementable=&comboDetail=true
** ERROR ** [V10.2.1] REMOTE_ADDR = IP Adr
** ERROR ** [V10.2.1] SCRIPT_FILENAME = path/projeqtor/tool/jsonQuery.php
** ERROR ** [V10.2.1] CONNECTED USER = #3 - username
** ERROR ** [V10.2.1] === Trace Stack for last error ===
** ERROR ** [V10.2.1] => /path/projeqtor/tool/projeqtor.php at line 1673 calling debugPrintTraceStack()
** ERROR ** [V10.2.1] => /path/projeqtor/model/Security.php at line 340 calling traceHack()
** ERROR ** [V10.2.1] => /path/projeqtor/tool/jsonQuery.php at line 42 calling Security:checkValidAccessForUser()
** ERROR ** [V10.2.1] ===
** ERROR ** [V10.2.1] REQUEST_URI = /projeqtor/tool/jsonQuery.php?objectClass=Team&objectType=&objectClient=&budgetParent=&objectElementable=&comboDetail=true
We migrate the code by replacing the existing code with the new version, as explained in the documentation. We do not have other errors in other log...

Thanks!

1) No resource screeen : check Access to Screen for "Resource", your profile should just not have access to Resource screen.

2) I guess your user does not even have access to Team screen.
Then, if you add allocation for a team, you should not have the "search" button on team list as you don't have rights to see Teams detailed list (as it could give you acces to unexpected data).
The issue is that the button appears, so if you click on, it, you get a "try to hack issue"

Every thing is checked in that screen for Administrator role. Also, I do not see an option for Resource, Contact, Client, etc.

See some section here : 

Is it possible that the visibility was unchecked and therefore, I'm am unable to see them there?

Also, for the "Hack" message, the user has Administrator rights... and I can see the search button...