Master Details Forms- Report getting error

Dear All,
I have used master details form . In details form , i am having 50 fields . i am able to add row. after that it is showing error ike below.
Error:
=============================================================================
Error in mru internal routine: ORA-20001: Error in MRU: row= 1, ORA-20001: ORA-20001: Current version of data in database has changed since user initiated update process. current checksum = "D63F13336F2D8570B20FC4825A7B836A", item checksum = "809B7E0170040C75637E80BE2D464C77"., update "SIFY"."REG_MANAGER_DETAILS" set "RMD_ID" = :b1, "RMD_RM_ID" = :b2, "RMD_ACMAN_NAME" = :b3, "RMD_CONN_OT_CUR" = :b4, "RMD_CONN_RS_CUR" = :b5, "RMD_CONN_HW_CUR" = :b6, "RMD_HOST_OT_CUR" = :b7, "RMD_HOST_RS_CUR" = :b8, "RMD_HOST_HS_CUR" = :b9, "RMD_EAS_OT_
=============================================
What will be solution to resolve this type of error ?
Please help me to resolve this. Thanks in advance.
Regards
Dhanush.R

Dhanush,
This is an optimistic locking checksum error. It's trying to tell you that it can't save because someone/thing has updated the data already and it doesn't want to overwrite it. Is that always occurring?
Regards,
Dan
Blog: http://DanielMcGhan.us/
Work: http://SkillBuilders.com/

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Mod: moved from Japanese Apex

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HELP: Error while insert in master-detail form!!!

Hello
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I am still new to this, but maybe this will help.
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2. I have not used a trigger yet, but could there be validation being done in the form before the trigger is firing. Therefore, there would not be a value in the detail part of the form.
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Master Details Forms- Report getting error

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