I can´t list all task of another users

I have created several tasks and assigned them to other users, I am an administrator user and I should be able to see all the tasks.

Maybe you create new role for you and user:

I know, but my user is admin, i don’t understand why i can’t see this.

So, to my user, i can’t assign any roll, i think.

Check permissions set for it. Admin should able to view all records.

Sorry, the problem is diferent, the problem is that, when i assigned another user, the task go to error 500, if i create in dashlet, save but don´t running.
all permissions is ok to 775.
Version 7.14 de suitecrm. y version 8.2 de php-

You must have a FATAL on your logs