Error handling for Oracle 11i GUI based recorded script using LR

HI All,

I had scripted some of the flows using Oracle 11i GUI based recording. When I reply with limited users I am not facing any errors, but when I include the script with more load, below error is coming very often & the users getting failed.
Can any one please let me know how to handle "Object: Not found" error that occur when we reply the script in Oracle 11i GUI based recording. Main intension in handling is the users should with stand without failing.

Please find the attachment for the exact error message for reference.