The Siebel Server Either Busy Or Experiencing Difficulties

Issue: 

When trying to access Siebel app url, server is returning below:

Error:
The Server You Are Trying to Access is Either Busy Or Experiencing Difficulties

Possible Reasons:
Check if Siebel App services are running. If services are running and you are receiving the same
Go to log folder and open the latest log file "PSCcObjMr_ara_test" and go to the end.

Logs:
2021 2021-03-14 16:44:00 2021-03-14 16:44:00 +0400 00000003 001 003f 0001 09 PSCcObjMr_ara_test 39845995 14192 13008 E:\Siebel\8.2.2.0.0\ses\siebsrvr\log\PSCcObjMr_ara_test_0038_39845995.log 8.2.2.4 [23030] ARA

ObjMgrSessionLog    Error    1    00000135604d4060:0    2021-03-14 16:44:00    (model.cpp (5980)) SBL-DAT-60237: حدث خطأ أثناء تحميل ملف الدليل diccache.dat.

ObjMgrCTLog    Error    1    00000135604d4060:0    2021-03-14 16:44:00    (ctxtmgr.cpp (4567)) SBL-SVC-00208: الرجاء تسجيل الدخول أولاً.
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Errors:

SBL-DAT-60237: An error occurred loading the directory file

SBL-SVC-00208:Please login first

Solution:
If you are receiving the error as above, simply stop the services and go to below location in App server and rename the "diccache.dat" file and start the server. Wait for some time and re try to access the Siebel app url.

E:\Siebel\8.2.2.0.0\ses\siebsrvr\BIN\diccache.dat