I have invite to Sct but i cant signup, why?

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its wrote: "signup close, sory"
if i have an invite i should signup without problems, so why it wrote?

[blekitna]

This man is propably @MORami - yesterday was banned and cheated me
so he login a new account :(

[raspberry1331]

because there is 10000 user limit. if its full, u cant sign up even with an invite. keep trying, they prune accounts all the time.

[Explore]

i trying almost one week and a half but it still close!
and dont wory blekitna, i am not MORami, but i read about him, thanks for the warrning.