Hi,

I cannot reproduce.
I need more information to investigate.

1) did you try and clean browser cache ?
2) did you try and select another project ?
3) Do you have any error in ProjeQtOr log file ?
4) Do you have any error in Browser console ?
5) Can you try to open new tab in browser (keep existing connected) and goto :
http://yourserver/projeqtor/tool/jsonQuery.php?objectClass=Project
what is the result ?

1)Yes,
2)Yes, all of them the same. I am not able to see list of projects when I click "Projects" in the menu on the left either.
3)Where log file is located?
4) Failed to load resource: the server responded with a status of 404 (Not Found) in Google
Tried on different computer with IE with the same result but no errors in the console.
5) Just shows: {"identifier":"id", "items":[] }

3)Where log file is located?

Log file is by default in/files/logs (one file per day)

5) Just shows: {"identifier":"id", "items":[] }

This kind of response is correct for empty list.

Attached is zipped log file. After update events start at page 26. Sorry, I will be able to reply to any other message on Monday only.
Thank you.

You had issue during upgrade :

2015-07-10 14:24:41.867 ===== TRACE ===== =====================================
2015-07-10 14:24:41.867 ===== TRACE =====
2015-07-10 14:24:41.867 ===== TRACE ===== DataBase actual Version = V4.4.2
2015-07-10 14:24:41.867 ===== TRACE ===== ProjeQtOr actual Version = V5.0.2
2015-07-10 14:24:41.867 ===== TRACE =====
2015-07-10 14:24:41.870 ** ERROR ** Error on SqlElement to get 'individual' for Class 'ExpenseDetailType' : field 'individual' not found in Database.
2015-07-10 14:24:41.870 ** ERROR ** Error on SqlElement to get 'project' for Class 'ExpenseDetailType' : field 'project' not found in Database.
2015-07-10 14:24:42.164 ===== TRACE ===== =====================================
2015-07-10 14:24:42.164 ===== TRACE =====
2015-07-10 14:24:42.164 ===== TRACE ===== DATABASE UPDATE COMPLETED TO VERSION V5.0.2
2015-07-10 14:24:42.164 ===== TRACE =====
2015-07-10 14:24:42.164 ===== TRACE ===== =====================================

You don't have trace of database update...

Good morning Babynus,
What can I do to fix it?
Thanks.

Try and manually return to V4.42 :

update table parameter set parameterCode='V4.4.2' where parameterCode='dbVersion';

Then reinstall V5.0.2 from zip, go to login page : you should see maintenance message.
Clean log file (to be sure)
Connect as admin, and check log file.