fix: Solved problem when disconnecting from the instance the instance was deleted

src/whatsapp/controllers/instance.controller.ts

@@ -187,7 +187,7 @@ export class InstanceController {
 
         this.chatwootService.initInstanceChatwoot(
           instance,
-          instance.instanceName,
+          instance.instanceName.split('-cwId-')[0],
           `${urlServer}/chatwoot/webhook/${instance.instanceName}`,
           qrcode,
           number,
@@ -234,6 +234,10 @@ export class InstanceController {
 
       this.logger.verbose('state: ' + state);
 
+      if (!state) {
+        throw new BadRequestException('The "' + instanceName + '" instance does not exist');
+      }
+
       if (state == 'open') {
         return await this.connectionState({ instanceName });
       }