After Upgraded my zencart to the latest V1.5.4 via my hosting company sever, I can't add new product or category inside Admin Panel. After added new item or category, nothing happen in admin, not showing on my website as well.
There is also a double listing there, is it normal? I swtiched to Zencart Classic Contemporary Green, also the same issue.
https://www.dropbox.com/s/gza9tsrn6v...%20pm.png?dl=0
How can i fix it?
Many thanks!
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