System Diagnostics page is blankDescriptionCustomer not able to see any data under Diagnostics Page.Release or EnvironmentSeen on LondonCauseWhen a scheduled maintenance change gets cancelled (ie an instance Datacenter migration), It leaves behind invalid records in sys_cluster_state table for the nodes in targeted datacenter. We can see the reference of sys_ui_page.3e9c0f400a6a803f008c555aeff5b516 in log while loading System Diagnostics page. 2019-11-11 02:59:28 (928) Default-thread-10.1 712E0BE5DBC54C541E7BF7461D961966 txid=9a9f076ddb09 WARNING *** WARNING *** Evaluator: org.mozilla.javascript.EcmaError: Cannot read property "name" from nullCaused by error in sys_script_include.508f4cbc0a25810200b051fed91e04c6.script at line 632019-11-11 02:59:28 (929) Default-thread-10.1 712E0BE5DBC54C541E7BF7461D961966 txid=9a9f076ddb09 WARNING *** WARNING *** Evaluator: org.mozilla.javascript.EcmaError: Cannot read property "name" from nullCaused by error in sys_script_include.508f4cbc0a25810200b051fed91e04c6.script at line 472019-11-11 02:59:28 (930) Default-thread-10.1 712E0BE5DBC54C541E7BF7461D961966 txid=9a9f076ddb09 WARNING *** WARNING *** Evaluator: org.mozilla.javascript.EcmaError: Cannot read property "name" from nullCaused by error in sys_script_include.508f4cbc0a25810200b051fed91e04c6.script at line 82019-11-11 02:59:28 (931) Default-thread-10.1 712E0BE5DBC54C541E7BF7461D961966 txid=9a9f076ddb09 WARNING *** WARNING *** Evaluator: org.mozilla.javascript.EcmaError: Cannot read property "name" from nullCaused by error in sys_script_include.d22e7bdbc0a8016500a18e024bfc9aa3.script at line 42019-11-11 02:59:28 (931) Default-thread-10.1 712E0BE5DBC54C541E7BF7461D961966 txid=9a9f076ddb09 WARNING *** WARNING *** Evaluator: org.mozilla.javascript.EcmaError: Cannot read property "name" from nullCaused by error in Phase 2 Jelly: ftp://gsft_database_form/sys_ui_page.3e9c0f400a6a803f008c555aeff5b516.html.1 at line 1==> 1: var diag = new Diagnostics();2: diag;2019-11-11 02:59:28 (932) Default-thread-10.1 712E0BE5DBC54C541E7BF7461D961966 txid=9a9f076ddb09 WARNING *** WARNING *** Evaluator: org.mozilla.javascript.EcmaError: ResolutionRaise a new case in HI and we can assist in removing stale sys_cluster_state records .