diff --git a/lib/DigestSender.php b/lib/DigestSender.php
index a9f644e90..0ec19b2dd 100644
--- a/lib/DigestSender.php
+++ b/lib/DigestSender.php
@@ -134,6 +134,7 @@ private function getLastSendActivity(string $user, int $now): int {
 
 	public function sendDigestForUser(string $uid, int $now, string $timezone, string $language) {
 		$l10n = $this->l10nFactory->get('activity', $language);
+		$this->groupHelper->setL10n($l10n);
 		$lastSend = $this->getLastSendActivity($uid, $now);
 		$user = $this->userManager->get($uid);
 		if ($lastSend === 0) {
diff --git a/lib/GroupHelper.php b/lib/GroupHelper.php
index fc5119e5a..9d0bb78f4 100644
--- a/lib/GroupHelper.php
+++ b/lib/GroupHelper.php
@@ -143,7 +143,9 @@ public function getActivities() {
 	 * @return IEvent[]
 	 */
 	public function getEvents(): array {
-		return $this->event;
+		$return = $this->event;
+		$this->event = [];
+		return $return;
 	}
 
 	/**