A process execution raises an error "java.lang.NumberFormatException: For input string: ...".
The action which fails contains a Password property (for example Send or Get files with FTP, or SCP, Send Mail, etc.).
This kind of action can take alternatively an uncrypted passord or a crypted password. This error generally occurs when the uncrypted password was typed into the crypted password's property.
=> Type the uncrypted password into the "UNCRYPTED_PASSWORD" property, or crypt the password and paste the result into the PASSWORD property.