I'm using Sitecore 9.1.1 and DEF 2.1.0 and trying to create a new value in the field in Salesforce object from Sitecore Item. I've created all accessor set and value mapping sets and configured pipelines to do this operation. I failed in doing so, giving error in logs like this:

ManagedPoolThread #2 07:28:55 DEBUG [Data Exchange] Trying to update salesforce object. (pipeline: Handle Single Row From Sitecore Pipeline, pipeline step: Submit Single Salesforce Object Pipeline Step, pipeline step identifier: c3d7674f-4938-4af5-9742-7fa4d247457a)

ManagedPoolThread #2 07:28:55 ERROR [Data Exchange] Error duting creating. (object name: ACE_Booking__c) (pipeline: Handle Single Row From Sitecore Pipeline, pipeline step: Submit Single Salesforce Object Pipeline Step, pipeline step identifier: c3d7674f-4938-4af5-9742-7fa4d247457a)

ManagedPoolThread #2 07:28:55 ERROR [Data Exchange] One or more errors occurred. (pipeline: Handle Single Row From Sitecore Pipeline, pipeline step: Submit Single Salesforce Object Pipeline Step, pipeline step identifier: c3d7674f-4938-4af5-9742-7fa4d247457a)

ManagedPoolThread #2 07:28:55 ERROR [Data Exchange] START AGGREGATE EXCEPTION (pipeline: Handle Single Row From Sitecore Pipeline, pipeline step: Submit Single Salesforce Object Pipeline Step, pipeline step identifier: c3d7674f-4938-4af5-9742-7fa4d247457a, ID: 2, HResult: -2146233088)

---- Error duting creating. (object name: ACE_Booking__c) (pipeline: Handle Single Row From Sitecore Pipeline, pipeline step: Submit Single Salesforce Object Pipeline Step, pipeline step identifier: c3d7674f-4938-4af5-9742-7fa4d247457a)

Unable to create/update fields: Name. Please check the security settings of this field and verify that it is read/write for your profile or permission set. (pipeline: Handle Single Row From Sitecore Pipeline, pipeline step: Submit Single Salesforce Object Pipeline Step, pipeline step identifier: c3d7674f-4938-4af5-9742-7fa4d247457a)

I'm creating pipeline steps like this:

Please guide me how to fix the error.