Merge pull request #46577 from nextcloud/backport/46555/stable28

[stable28] fix(appstore): Return an empty array in case of fail

Author: solracsf

lib/private/App/AppStore/Fetcher/AppFetcher.php

@@ -185,6 +185,10 @@ public function get($allowUnstable = false) {
 		$allowPreReleases = $allowUnstable || $this->getChannel() === 'beta' || $this->getChannel() === 'daily' || $this->getChannel() === 'git';
 
 		$apps = parent::get($allowPreReleases);
+		if (empty($apps)) {
+			$this->logger->warning('Could not get apps from the appstore', ['app' => 'appstoreFetcher']);
+			return [];
+		}
 		$allowList = $this->config->getSystemValue('appsallowlist');
 
 		// If the admin specified a allow list, filter apps from the appstore