Update sources/ui/src/main/java/tools/dynamia/modules/saas/ui/customizers/AccountFormCustomizer.java

Co-authored-by: Copilot <[email protected]>

Author: marioserrano09

sources/ui/src/main/java/tools/dynamia/modules/saas/ui/customizers/AccountFormCustomizer.java

@@ -57,6 +57,10 @@ private void setupResellerInfo(FormView<Account> view) {
             }
 
             resellerCombo.addEventListener(Events.ON_CHANGE, e -> {
+                if (resellerCombo.getSelectedItem() == null) {
+                    UIMessages.showMessage("Please select a valid reseller.");
+                    return;
+                }
                 AccountReseller reseller = resellerCombo.getSelectedItem().getValue();
                 var agents = service.findAgentsByReseller(reseller);
                 fillComboboxAgents(agentCombo, agents, account);