The user-context could not be established [SBL-DAT-00546] [SBL-DAT-00254]

Hi Exprets

as per my requirement, i have ran EIM process to delete records in CONTACT table with the below .ifb file

[Siebel Interface Manager]

PROCESS = Acc_Delete

[Acc_Delete]

TYPE=SHELL

INCLUDE=Exp_record

[Exp_record]

TRANSACTION SQL = "DELETE FROM S_CONTACT"

TYPE = EXPORT

BATCH = 1

TABLE = EIM_CONTACT

EXPORT MATCHES = S_CONTACT,(LAST_UPD > '20/MAR/16' AND LAST_UPD < '23/MAR/16')

CASCADE DELETE ONLY =   TRUE

DELETE ROWS         =   TRUE

it has successfully deleted the records from the table but after that

when i access the UI i am getting the below error for the UI

"The server you are trying to access is either busy or experiencing difficulties. Please close the Web browser, open a new browser window, and try logging in again"