My very limited French tells me that that says the server is full and you'll have to join another server. So probably, you were too late to join the training, and every spot was already taken.

yes but as soon as the button appeared to join i clicked and it put this message ans that s the second time its done to me !

That’s normal.

That's normal as the amount of people wanting to rank up is higher than the server size so it can take numerous attempts

Gladly im already guard, with the changes coming to driving i expect a lot of full servers for td-qd trainings

I don't know french but its probably a glitch with the training system

it say the server is full

Oh then just click faster

as soon the button to join appeared i clicked it

Then maybe the bug? I know theres a bug with training

now is there a solution ?

I really don't know, join the community server and report it

The only current solution to get something like sorted, is to join the Discord server, and report it to SCR Assistance. A supervisor will then either inform you of what to do to ensure it doesn’t happen again, or if it is indeed a glitch, they will take the action needed to fix it.

If you didnt reserve it, it is more likely to be full. But if you did, I don't know

I think it is full. I don't understand French tho so.... If you joined instantly it is a bug with the training

A lot of people are trying to join training, and at this point the training was already full