I have a script in which the customer calls in a queue to stay upto 30 minutes but they hanged up in 4.5minutes . Someone look into the script and let me know where i'm doing it wrong .

Whenever i set the properties  for the DB Read , it shows me the error of "i/o exception occurred in table schema" .After that i did the refresh database schema , it shows me another error "java.lang.Exception:unable to access data:Please try later i...