This might have been related to this :
https://wordpress.org/support/topic/hustle-installation-issues/
Check if you have the tables inserted correctly into your DB.
Hello @balramverma
Hope you’re doing well!
I apologize for the delayed reply.
It seems that this is related to your site setup because I can’t replicate the same from my end.
In order to find a solution we need to identify the source of that conflict with Hustle, so please run a full theme/plugin conflict on your site.
– Deactivate all plugins, except Hustle
– Switch to a Default WordPress theme
Check if the changes can be saved. If all is well, activate one plugin at a time, each time, saving changes in a plugin, till you replicate this issue.
Also as @sertys mentioned in the above post, would you please make sure that the tables are set correctly in DataBase tables?
Let us know how it went!
Kind regards,
Nastia
Thank you for using Hustle. Just an update, we released an update with a lot of little fixes so I am going to mark this topic resolved because we haven’t heard from you in awhile. If this issue was not resolved we can reopen it. Thanks again!