fix missing column in Activity onDelete

entity/Activity_entity/recordcontainers/db/onDBDelete.js

@@ -4,7 +4,7 @@ import("Sql_lib");
 import("Context_lib");
 
 var activityObjectsCondition = SqlCondition.begin()
-                                           .andPrepare("AB_OBJECTRELATION.OBJECT1_TYPE", ContextUtils.getCurrentContextId())
+                                           .andPrepare("AB_OBJECTRELATION.AB_OBJECTRELATIONTYPE1", ContextUtils.getCurrentContextId())
                                            .andPrepareVars("AB_OBJECTRELATION.OBJECT1_ROWID", "$field.ACTIVITYID");
 
 db.deleteData("AB_OBJECTRELATION", activityObjectsCondition.build("1=2"));