[SOLVED] Users unable to login after upgrading to most current release

I did this and it logged me in but then I get the following error message and it freezes on loading the page. and Gives me this fatal error message "Fatal error: Maximum execution time of 30 seconds exceeded in /home/iconicprod/public_html/Project-Management/model/persistence/SqlElement.php on line 1724"

Here is the attached image of what I see now.

I checked the database connection as well as apache logs and MySQL logs as well, but i could not see anything problematic.
The database connection is done using 127.0.0.1.
Also I believe server performance should not be problematic because we also have other websites stored on VPS, including our own CRM+eCommerce which handles more than hundreds of thousand records very efficiently without any problem. With Ideal Server Load 0.02 (11 CPU), Memory usage up to 40% and 51% disk size doesn't seem to be performance issue. Also I was able to log into ProjeQtOr only once from user account. It took so much time to login and it asked to set new password. Setting password also required so much time but later it was working well after login but still slow than usual. This happened only once, now if i try to log in, the login page shows the message that login accepted but does not load dashboard and freezes.

Hello,

Yes i believe we have very heavy database, Its because one of our staff member added Project's Menu items as sub projects and i guess we have approx more than 50 projects. Also i am not sure but history's and all would be in thousands of records.

I will export the database and send it to you in any possible way and let you know of that. However i did not understand what you mean by anonymize it.