can't connect to server but was able to 2 weeks ago

Hello from Aussie
I have been using WINscp successfully for 8 moths now and have the latest version
When i tried to login today i was rejected yet nothing has changed
I get the following error message

Disconnected from server
Connection failed.
Sorry, invalid address given

The address has not changed

Host name ftp.esh3.org

User Name esh3.org


Using this version WINSCP 5.11.2 previously Win SCP 5.11.1

Windows 10


Password ESh5213@@

Help please
R Collins

That seems to be a pureftpd error message:
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