Updating failed. The response is not a valid JSON response - json

I just faced "Updating failed. The response is not a valid JSON response." this error when I update my page which was created through Elementor. how can I resolve this?
I just closed elementor without saving the changes and closed the browser. after that, I faced that issue constantly
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How to resolve Mongoose Validation Error : Path `email` is required?

I used postman to send post request to the backend application. During this process i was encountered with this validation error : path email is required.
Resolution: In postman, I noticed that I was specifing the values in Params tab instead of Body.
I have spent some considerable amount of time in resolving this small issue. So i thought this post would be helpful for others and possibly would save some time.
Hope this post would be helpful for some.

WP - Update failed. The response is not a valid JSON response + the table is missing from the database

I got an error refreshing information on a page on my WordPress site.
Error(WP - Update failed. The response is not a valid JSON response):
Console:
Network:
Also, for some reason, a table with links disappears from the database. I checked the rest and they work (for example, a table with links and a table with users)
How do I fix this error?
Need to change a type of url to simple(where ?page=1). And problem is resolved.

"Script Error Displaying unprocessed Data

I am currently following the mulesoft fundamentals 4 module 5. as i have been following the guide i should be able to Make requests to the API proxy from Exchange. However, every-time i click send i get an Error; Script error. Displaying unprocessed data"
The Error message Below:
Script error. Displaying unprocessed data.
''''''
The image displays the error code
Thank You for your help
This is because the server is unreachable or bad gateway (502).Make sure the implementation URL which you provide to create proxy is working.In my case I have used https instead of http.

jmeter shows "500 Internal Server Error" with UnmarshalException in viewresulttree

Out of nowhere, jmeter started failing 100% for my normal web service requests. Upon further analysis found that, at server empty request is received. Attached viewresultstree listener with all flags ON and found below error
<?xml
version=&apos;1.0&apos; encoding=&apos;UTF-8&apos;?><ns2:Fault
xmlns:ns2="http://schemas.xmlsoap.org/soap/envelope/"
xmlns:ns3="http://www.w3.org/2003/05/soap-envelope"><faultcode>ns2:Server</faultcode><faultstring>javax.xml.bind.UnmarshalException
- with linked exception: [com.ctc.wstx.exc.WstxParsingException: Unexpected close tag </Client>; expected
</EOF>. at [row,col {unknown-source}]:
[24,16]]</faultstring></ns2:Fault>
I can say that there is no XML parsing exception. Can someone please help me on this weird jmeter behavior?
Found the issue, it was with the input file. somehow the input file turned into empty file which was providing EOF for input parameter and hence the request was being treated as ended when this first EOF appeared at server HTTP endpoint.
Fixing this input data file resolved this issue to me. :)

Direct POST into URL not working?

I am trying to contact an API by posting the parameters in the URL. I am unsure whether it will respond in XML or JSON, but it is one of the two, however, it says there is an error.
This is an example of what I'm submitting. I am receiving this in response:
This page contains the following errors:
error on line 1 at column 1: Document is empty
Below is a rendering of the page up to the first error.
I do not know what is going on... I followed the syntax of the POST I believe, my only remaining question about the syntax would be whether the ? is in the right spot. The page API does work when I POST using PHP...
Or maybe it is working, the browser just isn't capable of understanding an XML or JSON response? (I'm using chrome so I do not think this is the issue)
Otherwise, if anyone has any insight on this, I'd be greatful
A different browser yields this error:
XML Parsing Error: syntax error
Location:
Line Number 1, Column 1:Array
^
While the syntax of the URL does seem to be fine, you imply that the API expects the parameters in POST. Adding them to the actual URL means the parameters are passed in GET, rather than POST.
You could try to test this by making a little HTML form containing all the relevant parameters and passing them to this API via POST, and see if that gives you the expected result.
your issue is how their being sent to the api it should be url-encoded
http://api.example.com/api/?apikey=asdfa23462=example&ip=208.74.76.5
should be
http://api.example.com/api/?apikey=asdfa23462&=example&ip=208.74.76.5
also another issue i see is that you have ?apikey=asdfasfsdafsd&=example
the =example could well be the issue all together.
just some thoughts from what i see.