exception when using application oracle forms

Hello, when 8 users use our application built with orcle forms 10g. The application crashed for 4 users in the same interface.fmb and the others still work开发者_如何学Python into the application. The exception in this picture

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FRM-92100 An Unexpected Network error or server failure occurred. 

It's a typically helpful Oracle error message 8-)

Basically, it's pretty generic, there's all sorts of things it could be. If you have an Oracle Support Contract I suggest you surf over to MOS and read through the note on Troubleshooting FRM-92050 and FRM-921xx errors (note ID = 189867.1).

If you haven't got a support contract then I suggest you head for the OTN Forms forum and ask your question there. Frankly Forms is now a niche tool and you've got a much better chance of getting helpful advice from a dedicated site with a community of specialists. Find them here.

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Just a rough guess from the security exception:

The exception would seem ti imply that either the server connection reset/closed, or there a limit on the number of concurrent connections allowed. Does the app run fine with 7 people, but once you get 8 in there, that's when it crashes?