Replacing the "J" bend must have loosened some gunk built up on the pipe wall and now you have a blockage in the horizontal drain line in the wall.
The solution would be to remove the "J" bend and send a snake up into the wall, (see image). N You will hit a bend about 8 inches but once past that you should only have 5 more feet to put out. Flush with a sink full of hot water, Good luck, Tom

Hi tom, many thanks for getting back to me so there is a clog in the wall part? Because i did everything i learned and the j bend is filled on water and no foinf anywhere . So i have to buy a snake and fo into the pipe in the wall?

Hey Joyell,
First off lose the caps, We don't yell at one another in here.
This isn't your fault. N You had a clog ready to happen and you just helped it along. Good luck, Tom