Unable to download plugins

My company using proxy network so I asked IT to bypass domains
analytics.katalon.com
store.katalon.com
But i still can’t download plugins from katalon, maybe I need bypass another domain?

image

Error.
com.kms.katalon.plugin.models.KStoreClientException: Invalid Request. Status Code: 503. Message: Service Unavailable
at com.kms.katalon.plugin.service.KStoreRestClient.executeGetRequest(KStoreRestClient.java:334)
at com.kms.katalon.plugin.service.KStoreRestClient.downloadPlugin(KStoreRestClient.java:137)
at com.kms.katalon.plugin.service.LocalRepository.downloadPlugin(LocalRepository.java:149)
at com.kms.katalon.plugin.service.LocalRepository.resolvePlugins(LocalRepository.java:70)
at com.kms.katalon.plugin.service.PluginResolver.resolveOnlinePlugins(PluginResolver.java:32)
at com.kms.katalon.plugin.service.PluginService.reloadPlugins(PluginService.java:139)
at com.kms.katalon.composer.handlers.ReloadPluginsHandler$1.run(ReloadPluginsHandler.java:79)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)

I fixed this issue by add plugins.katalon.com to company’s proxy whitelist.