I cannot connect hosting with filezilla client

[legit_ptc90]

Dear admin,

Please help me , I cannot connect to hosting with filezilla.

My domain is : legit-ptcs.co.cc
user : legitptc
pass : same cpanel password.
port : 21

 

[techairlines]

Whats the error message you are getting when trying to connect to FTP?

 

[legit_ptc90]

Oh , today , it's ok

I don't know why ? but thank you so much .