Unable to access my digital subscription

App worked great for about 8 months then stopped giving me the option to download new issues, only giving me a choice between buying an issue or subscribing even though my subscription is still active. Tried restarting phone, logging off and back on, uninstalling and reinstalling app, etc. Emailed the provided support address with no reply. Going to permanently uninstall if issue is not resolved soon.

Jjjwwm12543 about Field & Stream, v5.2.15