[UPDATE October 2]
The issue has been fixed in v3.2 and all users are encouraged to update to the latest version.
It has come to our attention that the search feature is no longer working in Stock + or Stock + Pro. We have identified the problem (data provider has made changes) and we have submitted updates.
If you are a Direct Download user (purchased outside of the Mac App Store) simply go to the menubar, Stock + > Check for Updates
If you are a Mac App Store user sit tight. We have submitted an update to Apple’s review team and requested an expedited review. Normal review times are approximately 1 week. Expedited reviews typically take around 24 hours.
If you absolutely need to add an item right now, you can download the free trial version (already updated) from our website.
Many apologies for any inconveniences,
Andrew & the Chimp Studios Team