Hi,
Unfortunately the javascript error is a data issue that has affected a handful of IOS users. I am working on a fix to allow you to reset selective ingredients/profiles to correct the issue. However it may take several weeks to get it through the complete approval process to release.
In the meantime, unfortunately the only work around is to save your recipes and profiles to your cloud folder and then uninstall and reinstall the app.
NOTE that reinstalling the app will wipe your local mobile data out, so make sure you have copied your recipes to the cloud folder if you choose this route. Note that you can also save your profile or custom ingredient data by using it in a recipe and then copy that recipe to the cloud - you can later pull that recipe down and save the custom profiles and ingredients.
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Cheers!
Brad Smith