The system has not been taken off maintenance mode completely.Please contact your system adminstration.

Cause: After patch application, Maintenance mode is not disabled.

Solution :

1) login to applmgr user

2) run adadmin

3) use option 5 to disable maintenance mode

AD Administration Main Menu
————————————————–
1.    Generate Applications Files menu
2.    Maintain Applications Files menu
3.    Compile/Reload Applications Database Entities menu
4.    Maintain Applications Database Entities menu
5.    Change Maintenance Mode
6.    Exit AD Administration

Enter your choice [6] : 5
Please select an option:
1.    Enable Maintenance Mode
2.    Disable Maintenance Mode
3.    Return to Main Menu

Enter your choice [3] : 2

sqlplus -s &un_apps/***** @/apps/vision/apps/apps_st/appl/ad/12.0.0/patch/115/sql/adsetmmd.sql DISABLE
Successfully disabled Maintenance Mode.