FRM-92100 : your connection to the server was interrupted

Cause

NLS_LANG has been set to an invalid value in the environment of the user starting Oracle Forms Services.

Solution

Set NLS_LANG to a valid value like AMERICAN_AMERICA.AR8MSWIN1256 in the default.env file or any custom environment file which is being used.

You can go to regedit and also set the NLS_LANG value to the one mentioned above and check if this resolves the issue. 

 If the Above Solution Doesn’t Work For you Try The Below One :

1) FRM-92100 occurs when invoking a new forms session from existing form session, or another URL is invoked from the parent browser window of the forms applet?

To work-around use the applet parameter separateFrame=”True”. This parameter is set in the static html file or formsweb.cfg

2) If using Oracle Jinitiator, try clearing the Jinitiator JAR or jcache:

For versions 1.3.x.x.x : Control Panel – Jinitiator Control Panel – Cache Tab Page – Clear JAR Cache button

3) If using MS Internet Explorer check that permissions / security options are set correctly

Launch Microsoft Internet Explorer.
Select the Tools -> Internet Options from the top level menu.
Click the SECURITY Tab:
Choose Local Intranet Zone from the list.
Click Custom Level.
Select Java Permissions – Custom from the list.
Click Java Custom Settings.
Select the Edit Permissions tab.
Choose Enable for Run Unsigned Content.
Choose Enable for Run Signed Content.
Select the ADVANCED tab.
Scroll down to Java VM.
Check the Java console enabled option.
Select the CONNECTIONS tab.
Click the LAN Settings button.
If IE is using a proxy server : Check the Bypass proxy server for local addresses check box. Click the Advanced button, and enter the local domain in the Exceptions box. Use the form *.domain.com, where domain.com maps to your local domain.
Click OK to exit the dialog.
Click OK to save the changes and exit IE.
Restart the computer.

Thank you
This Work aroud Is Working For Me , Hope it will be useful For you

Osama Mustafa 

Useful Command in RMAN

List Command :

1)RMAN> list backup;
List all your backup sets.
***************
2)RMAN>LIST BACKUPSET;
Lists only backup sets and proxy copies.
***************
3)RMAN>LIST COPY;
Lists of Image copies and Archive Logs.
***************
4)RMAN>LIST EXPIRED BACKUP;
Backups did not found after crosscheck. That is backup is manually moved or deleted from OS.
***************
5)RMAN>LIST BACKUP BY FILE;
List backup by Datafile, controlfile, spfile.
***************
6)RMAN>LIST BACKUP SUMMARY;
Lists backup sets, proxy copies, and disk copies.
***************
7)RMAN>LIST BACKUP OF DATABASE;
LIST BACKUP LIKE ‘/tmp/%’; list backup of datafile 1; LIST ARCHIVELOG ALL BACKED UP 2 TIMES TO DEVICE TYPE sbt;LIST COPY OF DATAFILE 2 COMPLETED BETWEEN ’17-MAR-2008′ AND ’22-MAR-2008′; are also available.
***************
8) RMAN>LIST INCARNATION;
LIST INCARNATION OF DATABASE; to see the incarnations of your database.

Report Command:

RMAN REPORT command analyzes the available backups and return results about while files need backup which files are obsolete etc.

1)REPORT NEED BACKUP;
Determine which database files need backup under a specific retention policy.
***************
2)REPORT UNRECOVERABLE;
Report which database files require backup because they have been affected by some NOLOGGING operation.
***************
3)REPORT SCHEMA;
Lists and displays information about the database files.
***************
4)REPORT OBSOLETE;
REPORT OBSOLETE displays the backups that are obsolete according to the current retention policy.
***************
5)REPORT NEED BACKUP RECOVERY WINDOW OF 2 DAYS DATABASE SKIP TABLESPACE data01;
If you use Recovery Catalog then past data can be shown.Like, REPORT SCHEMA AT TIME ‘SYSDATE-10’;
***************

Delete Command:

Delete commands is used to delete any backup or backupsets.

1)RMAN> delete backupset all;
Delete all your backup sets
***************
2) RMAN> delete copy all;
Delete all image copies.
***************
3) RMAN>DELETE OBSOLETE;
Delete obsolete Backups.
***************

thank you all .