Have you followed the diagnostic steps in the link provided?
As @tangerine said, this is the best place to start.
And if no joy after that, we're happy to take a look, but as per the forum rules, please link to a test case - a test case that replicates the issue will ensure you'll get a quick and accurate response. Information on how to create a test case (if you aren't able to link to the page you are working on) is available here.
if any field change from database at that time data table reload and show image error. there are one field location which i add recently in data table .Its show error for that column
Answers
I don't know what you mean by "when I reschedule the task".
Have you followed the diagnostic steps in the link provided?
Reschedule means changed the date of activity or any task or field then its show this error
As @tangerine said, this is the best place to start.
And if no joy after that, we're happy to take a look, but as per the forum rules, please link to a test case - a test case that replicates the issue will ensure you'll get a quick and accurate response. Information on how to create a test case (if you aren't able to link to the page you are working on) is available here.
Cheers,
Colin
if any field change from database at that time data table reload and show image error. there are one field location which i add recently in data table .Its show error for that column
Please read Colin's previous response,