I created a script to check for potential issues. You can find it here: github.com/robwent/joomla-json-db-check

Nice one Robert!!
Thanks.

Thank you very much @smarterweb – it was the metadata, just had the same problem and could solve it.

@Mohammed, what do need mate?
I'd love to help.

I head the same problem. deleting "{"robots":"","author":"","rights":"","xreference":""}" from the DB solved it. Thanks...

Nice to hear that :)

Same issue here. Some articles throw the error, some don't. The k2_items metadata seems to be the culprit. I have one of 2 things in my metadata.

If I have {"robots":"","author":"","rights":"","xreference":""} then it doesn't work.

If I have the following it does work.

robots=
author=

So first I deleted the nonworking data and left it blank. That works. But then I replaced it with the working data and that seems to work.

I'm going to fix these on an as needed basis and maybe a more robust fix will arrive.

Hello, I have an issue like all of this topic, but I can access to K2 items or category (screenshot attached), I check the metadata items erasing or replacing with the correct form, I check one by one the params content with a JSON Validator and all its OK and still with the same issue. If I open a item from K2 Stats Admin I can show a line error. (screenshot attached). Can some one help me?

http://imgur.com/a/Gnq24

http://imgur.com/a/12Hg6

Hello Jimenez,

I'm not an expert but your error messages are not the 0 Error decoding JSON data: Syntax Error.
They show that it is the JCE Editor component which is having problems: "...com_jce\models\editor.php
Start by checking your Site > Global Configuration > Default editor.

And please start a new topic if you have not been able to resolve it from there..

Best wishes.

Hello,
These errors are coming from the JCE editor not K2.
Disable error reporting to get rid of them.