Ask to Buy - Cannot Connect to App Store

One of my children has Ask to Buy set up on their account. During May, I started receiving these requests via iMessage. Earlier in the month, I was able to approve requests with no issue. However, in the last few weeks, each time I click on a request, my phone will switch to the App Store and display the message "Cannot connect to app store." I do not have any issues connecting to the app store otherwise. I've reviewed all the articles and solutions to no avail. Checked iOS version on both devices. Restarted them and so on. Are there any other solutions for this issue?