[Fix] disable_rounded_total not found error (#15113)

diff --git a/erpnext/public/js/controllers/buying.js b/erpnext/public/js/controllers/buying.js
index 20ac6b4..0fd6c97 100644
--- a/erpnext/public/js/controllers/buying.js
+++ b/erpnext/public/js/controllers/buying.js
@@ -26,7 +26,8 @@
 			};
 		});
 
-		if (this.frm.doc.__islocal) {
+		if (this.frm.doc.__islocal
+			&& frappe.meta.has_field(this.frm.doc.doctype, "disable_rounded_total")) {
 			this.frm.set_value("disable_rounded_total", cint(frappe.sys_defaults.disable_rounded_total));
 		}