Linked Server issue which connects to mainframe

I have a linked server which connects to Mainframe in production. The job was scheduled and running for a long time. This is failing now frequently with below error. But job is able to run manually after this failure.

Any help on this is greatly appreciated.

[SQLSTATE 42000] (Error 7399)  Cannot get the column information from OLE DB provider "MSDASQL" for linked server "TEST". [SQLSTATE 42000] (Error 7350).

Thanks.