Hi @Saleem Baig ,
Thanks for your patience! Based on this SO thread you can try changing this
App Setting Key
WEBSITE_RUN_FROM_PACKAGE = 1 to 0
"This setting makes wwwroot as a read-only file system. With Run From Package, this is strictly enforced as the wwwroot folder becomes read-only"
If you are still facing this issue please reach out to us at azcommunity@microsoft.com with the subject "ATTN: Grace" and in the body of the email include your Azure Subscription ID.
-Grace