ORA-12537: Network Session:End fo file Error

ORA-12537: Network Session:End fo file Error

When i publishing the solution through service center , i got this erorr:
"ORA-12537: Network Session:End fo file".
and my publish process failed.
Why this happining ?
Also some time got this error when i published one espace from service center.
hi Amit,

I would recommend to validate the applicationpool settings and the configuration tool for the timeout settings. 
at last, you might take a look in the database alert log to verify if the database has problems.

Thanks Hans, will check it.. 

you might set the private memory of ServiceCenter application pool higher, and you have to set the connection pool size high enough, see https://success.outsystems.com/Support/Enterprise_Customers/Maintenance_and_Operations/Connection_pools_in_OutSystems_Platform