ssl problem on 6.2.1

[Pretone]

I make cer install ->set on ini file name of cert but I give everything

(16.58.17) [1] 220 FTP Server ready.
(16.58.17) [1] AUTH TLS
(16.58.17) [1] 504 AUTH TLS unsupported.

any idea??

[Pretone]

problem solve make cert on pc where ioftpd running ...