Error uploading file

Hi all.
I made a simple form with just an upload file.
Using Joomla 4.
The result is always this error message:
​
Warning: Trying to access array offset on value of type null in myserverpath/administrator/components/com_chronoforms7/chronoforms/functions/upload/upload_output.php on line 27
​
Also the file name in debug is empty

​

Array
(
    [option] => com_chronoforms7
    [cont] => manager
    [chronoform] => form-17may22-1427
    [gpage] => end_page
    [__cf_token] => 83ed41c0-51c3-4d9c-8ebf-f2c0602c2674
    [file_1] => 
)

​
Any idea?
Thanks

Hi
​
Please, share your form...

here it is thanks
​[file=https://ebk.pixxdb.net/uploadfile_17_May_2022_17%2032%2014.cf7bak]https://ebk.pixxdb.net/uploadfile_17_May_2022_17%2032%2014.cf7bak[/file]

OK
​
It works very well for me, after a little correction...
​
In Settings, Upload Files, you write this...
/var/www/vhosts/area-shop.com/httpdocs/ebk/
​
I suppose that you want to upload file in folder /httpdocs/ebk/ of your domain area-shop.com
In this case, you have to write...
{path:root}/httpdocs/ebk/
​
In another case, write me in what folder you want to upload your file.
​
Good luck...

Tried also with this change but always same error. Are you using Joomla 4?

Yes, I'm using Joomla 4 and CF7.
​
But you haven't answer to my question.
Have you a folder named /httpdocs/ebk/ at the root of your site?

Sorry, no the folder is {path:root}/upload/files/
I've corrected it, the error is always the same
​
https://ebk.pixxdb.net/it/?option=com_chronoforms7&cont=manager&chronoform=uploadfile

Sorry but there is an error in your form...
​
Look at the debug.
I read

[path] => \var\www\vhosts\area-shop.com\httpdocs\ebk\

If I don't modify your form, I have the same error than you...
​
If you modify Settings of the form like I said ({path:root}/upload/files/), you should have..

[path] => https:/ebk.pixxdb.net/upload/files/

it's exactly what you wrote:

OK
​
I suppose that your folder /upload/files/ exists at the root of your site...
​
1: Backup your form
2: Delete your form
3: Clear Joomla Cache and Chronoforms Cache
4: Restore your form
5: Retry...

OK
Bye