Trouble with camera

Hi.. 

Every time I join to a zoom meeting, I always get a message error

"Unable to launch zoom meeting. When possible, please restart your computer and try again".

It happen since last week till today. I have reinstalled my zoom app twice and then restart my laptop, but it still happen. I have a chat with an agent zoom in zoom website and he suggests me to connect to Zoom Support team.

Please help me to fix this error.