i got this error when i was try to upload my website : Error: Connection timed out
Error: Could not connect to server , via FTP filezilla flashfxp etc .
the solution is :
Go to the website https://app.infinityfree.net and select your domain and click on edit account button
Click on hosting account password and change it
Do not use the same password of infinytifree and only use words and numbers
In the ftp client put the info with the new password
https://i.ibb.co/9s2W9cb/1.png and now u are in the ftp options