right indicator flickering fast on the rightside

when i switch on the car
then I switch on the lights
they both work, right side and left side.
the left front and rear indicator works fine
The front indicator does not.
Rear works perfect.
Checked the fuses. all are in tacted. and not blown.
took the right side bulb out and swapped it with the left
still didn't work. checked the bulb its perfect.
took the old broke head light lamp and took the connector
or signal and put the bulb in there and it works.
The cable or the connect is perfectly 100%
I dunno if it could be the area on where the right side indicator circle where the
bulb fits in is faulty or the light itself (the whole Component) .

Can any anyone help?

Clean and tighten the contacts, put a new bulb in, should work.
Btw, welcome to the Forum.