unable to view own profile in moodle

I am new in moodle administration! I am using moodlem 3.2. logged in with administrator, if i open my own profile it redirects me to this page:

http://moodle_site.com/ExamOnline/user/profile.php?id=2

And it show this error message:

"Forbidden

You don't have permission to access /ExamOnline/user/profile.php on this server. Additionally, a 403 Forbidden error was encountered while trying to use an ErrorDocument to handle the request."

same error message shows if i try to uninstall any moodle plugin

There could be 2 possibilities:

• profile.php file permission might not be correct or mode_security might be an issue.
• The permission might not be enabled like user:editownprofile