Hello.
I got this error message when I clicked ‘Change period’ on the chart page:
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Application Error
An application error occurred. If it repeats often, please contact the support.
Details:
Value cannot be null.
Parameter name: key
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Additional Info:
When I go to the chart page, this message appears in the upper right corner:
>>> Error loading Chart Pro plugin configuration: File C:\SCADA\ScadaWeb\config\PlgChartPro.xml not found.
After some time, this message appears:
>>> Generated 09/06/2025 10:02:48
Although the message in the Additional Info had appeared previously, I was still able to use the ‘Change period’ function — but now it no longer works.