Error when updating products

-- HikaShop version -- : 6.1.0
-- Joomla version -- : 5.4.4
-- Error-message(debug-mod must be tuned on) -- : Sorry, there was a problem we could not recover from.
The server returned a "500 - Whoops, looks like something went wrong."

Help me resolve this

Hello,
When I attempt to save product inventory, it does not save. And, I have also been receiving the above era when attempting to save products:

Hi,

There are two things you can do:
1. Activate the debug setting of the Joomla configuration page and reproduce the issue. You should get an error message with more information which will allow us to understand what the problem is exactly and tell you what to do to fix it.

2. It is likely that the problem is coming from an issue we already fixed in later updates of HikaShop. So I would recommend updating.