Mega Menu for Virtuemart throws error in backend

Hi,
after installing the mega menu for virtuemart 2.0.6 I tried to set a module-position.
But whenever trying to open the module in backend, this Json decoding error occurs:
"Error decoding JSON data: Control character error, possibly incorrectly encoded"

What can I do to prevent this error?

Thank you in advance.

Kind Regards

Heinrich Gerull
Joomla 3.8.4; Virtuemart 3.2.12; PHP 7.0

Hi,
does anybody has a suggestion,
how to handle this error ?

Thanks.

Heinrich Gerull

Hi HaIND,
did you check, why we get an error message when installing the Mega Menu for Virtuemart ?

Looking forward to your reply.

Thank you.

Kind regards

Heinrich Gerull

Hi HaiND,
thank you for checking the mega-menu module.
I tried to publish the module, but then the JSON-error appears again.
I reinstalled the mega-menu and everything is fine until I try to assign a module-position and publish it.
It keeps saying "JSON-error".
Could you please check once again?
Thank you in advance.
Kind regards

Heinrich Gerull

I have the exact same problem. Installation works well, then when I try to activate the module, it throws the JSON error as reported by Heinrich..

Hi, It's not related to one website. I installed it on a 3rd website yesterday and it happens again. There is something wrong with the installer. When I copy the settings from the database from a website that has the module working to a website with the module newly installed, I can get it to work.

So when you install your module, it doesn't properly save the JSON data to the database. You can just try to install the module on a fresh joomla installation and I'm sure it will happen to you as well. (latest version of module and Joomla of course).