Oracle Error

as you did not attach the full/exact error yet, it will be difficult to help ...

I agree that without a little more information it will be pretty much impossible to help determine the cause.

For example:
What is your setup Oracle-wise?
Has this ever worked?
Is it a new install?
Does it work on other machines?
etc...

See if it is the default language on the workstation?

This is from a quick Google:
https://community.oracle.com/thread/2429824?tstart=0

I am not the one who managing the oracle app server. The server team told that this not their issue.

"See if it is the default language on the workstation?" How can I set this?. I forgot to attach the file. I have attached file.
ora-err.jpg

>The server team told that this not their issue.
they will need to change attitude, you are the (internal) customer, who needs to be satisfied.
but the issue is indeed tricky, I had found the same suggestion as above, in regards to the "default language on the workstation". however, as I don't use oracle forms, I don't know more details to help with .

I also do not use Forms so can only offer general support.

>>How can I set this?.

If is referenced in the link I posted:  "changing default language in control panel".

I suggest you check with your desktop support people.  You might not have permission to change it.

>>The server team told that this not their issue.

I agree with the post above:  That is not an acceptable response since nothing in that error message states it is NOT server side.

Just from the message it points to a system or network issue or a configuration issue.

I changed the  default language still the same issue.