@APrasad_04 ...
To report an issue to Canvas Support, you will want to be on the screen in Canvas where you are experiencing the issue. Then, on the far left-hand side of your screen, click on the "Help" icon, and select "Report a Problem". This should bring up a small interface where you can submit a ticket.
Depending on the level of support that your school has for Canvas, it may get directed to your school's Canvas admin team, or it may get directed to Canvas Support technicians...as those are the to main levels of support I am aware of (again, depending on what your school has purchased with their Canvas environment).
How do I get help with Canvas?
I hope this will be of some help to you.