Hi @Abdullah
Lync tag is mainly focused on the general issue of Lync Server troubleshooting. According to your description, your question is not in our support scope. The following ideas is just for your reference.
I did some research and found the announcement in this article.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.