The requested resource does not exist

[Merrick-Zhang]

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[2018-11-10 00:39] SESSION , {"orgId":"ENCRYPTED","sessionId":"ENCRYPTED","userName":"ENCRYPTED","userId":"ENCRYPTED","salesforceURL":"https://ptmind.my.salesforce.com","language":"ja","dateFormat":"yyyy/MM/dd","dateTimeFormat":"yyyy/MM/dd H:mm"}
[2018-11-10 00:39] PAGE URL , https://ptmind.my.salesforce.com/p/setup/layout/LayoutFieldList?type=Contract&setupid=ContractFields&retURL=%2Fui%2Fsetup%2FSetup%3Fsetupid%3DContract
[2018-11-10 00:39] REFRESH METADATA , true
[2018-11-10 00:39] SETTINGS , {"custom_object":["CalendlyAction__c","ChannelPartner__c","Contract_Product__c","Invoice_Collection__c","SettingsForDuplicateCheckTest__c","SettingsForDuplicateCheck__c","pi__AsyncRequest_Settings__c","pi__AsyncRequest__c","pi__Category_Contact_Score__c","pi__Category_Lead_Score__c","pi__Demo_Settings__c","pi__EngageCampaignRecipient__c","pi__LDFilter__c","pi__ObjectChangeLog__c","pi__PardotTask__c","pi__Pardot_Scoring_Category__c","pi__Partner_Settings__c","pi__Trigger_Settings__c"],"show_api_name":true,"smart_mode":true,"standard_object":["EventRelation","Account","Case","Contact","Event","GroupMember","Holiday","Lead","Opportunity","Order","OrderItem","Pricebook2","Product2","Quote","Task","User"]}
[2018-11-10 00:39] [ERROR] HANDLE DROP , NOT_FOUND: The requested resource does not exist
at f.getError (chrome-extension://najljehpjnhkpilgbngikgbddemenlem/dist/js/main.min.js:16:27672)
at chrome-extension://najljehpjnhkpilgbngikgbddemenlem/dist/js/main.min.js:16:26022
at o (chrome-extension://najljehpjnhkpilgbngikgbddemenlem/dist/js/main.min.js:22:7201)
at chrome-extension://najljehpjnhkpilgbngikgbddemenlem/dist/js/main.min.js:22:7944
at MutationObserver.n (chrome-extension://najljehpjnhkpilgbngikgbddemenlem/dist/js/main.min.js:17:27054)