I'm dragging composer blocks to the designated areas and they disappear, it was working. I'd added some new users and a user group to at the home level and below

I’ve been getting the error below, I’m assuming it permissions. Has anyone come across this before?

System.Data.SqlClient.SqlException: Violation of PRIMARY KEY constraint 'PK_tblAccess'. Cannot insert duplicate key in object 'dbo.tblAccess'.
The statement has been terminated.
   at System.Data.Common.DbDataAdapter.UpdatedRowStatusErrors(RowUpdatedEventArgs rowUpdatedEvent, BatchCommandInfo[] batchCommands, Int32 commandCount)
   at System.Data.Common.DbDataAdapter.UpdatedRowStatus(RowUpdatedEventArgs rowUpdatedEvent, BatchCommandInfo[] batchCommands, Int32 commandCount)
   at System.Data.Common.DbDataAdapter.Update(DataRow[] dataRows, DataTableMapping tableMapping)
   at System.Data.Common.DbDataAdapter.UpdateFromDataTable(DataTable dataTable, DataTableMapping tableMapping)
   at System.Data.Common.DbDataAdapter.Update(DataSet dataSet, String srcTable)
   at System.Data.Common.DbDataAdapter.Update(DataSet dataSet)
   at EPiServer.DataAccess.PageAclDB.AclSave(PageReference pageLink, DataSet data, String procInsert, String procDelete)
   at EPiServer.DataAccess.PageAclDB.<>c__DisplayClass4.<Save>b__3()
   at EPiServer.DataAccess.DataAccessBase.<>c__DisplayClass7.<Execute>b__6()
   at EPiServer.DataAccess.DatabaseFactory.Execute[TResult](Action`1 method)
   at EPiServer.DataAccess.DataAccessBase.Execute(Action action)
   at EPiServer.DataAccess.PageAclDB.Save(PageReference pageLink, DataSet data)
   at EPiServer.Security.PageAccessControlList.Save(SecuritySaveType type)
   at EPiServer.Security.PageAccessControlList.Save()
   at Dropit.Extension.Controllers.UserManager.UpdateNewFunctionACL(ContentFunctionData contentFunctionData, PageData extensionPage)
   at Dropit.Extension.Controllers.ContentFunctionDataManager.CreateContentFunctionData(PageReference extensionPageLink, Int32 contentFunctionTypeId, AccessLevel accessLevel)
   at Dropit.Extension.Controllers.ContentFunctionDataManager.CreateContentFunctionData(PageReference extensionPageLink, Int32 contentFunctionTypeId)
   at Dropit.Extension.Core.ContentFunctionData.Create(PageReference extensionPageLink, Int32 functionTypeId)
   at Dropit.Extension.UI.Edit.CreateContentFunction.Page_Load(Object sender, EventArgs e)