external buy service catch fix

src/main/java/app/controllers/user/ProfileController.java

@@ -132,7 +132,12 @@ public class ProfileController {
                                     @RequestParam(value = "steam64", defaultValue = "") String steam64,
                                     @RequestParam String buy_type,
                                     @RequestParam(required = false, defaultValue = "") String cost) {
-        VipGiveMethod buy_type_enum = VipGiveMethod.valueOf(buy_type.toUpperCase());
+        VipGiveMethod buy_type_enum;
+        try {
+            buy_type_enum = VipGiveMethod.valueOf(buy_type.toUpperCase());
+        } catch (IllegalArgumentException err) {
+            return ResponseEntity.status(HttpStatus.CONFLICT).build();
+        }
 
         if (!vipService.getServices().getOrDefault(buy_type, true)) {
             return new ResponseEntity("Service " + buy_type_enum.name().toUpperCase() + " is not active long time", HttpStatus.OK);