Mantis Bug Tracker - Forums

Hi,

Our mantis versions is below.
MantisBT Version 2.25.2
Schema Version 211
PHP Version 7.2.24
Database Driver mysqli
Database Version 8.0.26

When we click Apply Filter button in View Issues tab, Internal Application Error is displayed.
We cannot use the mantis after this error. We have to clear the browsing history and cache to use again,

Please advise us how to resolve this problem?

You can check your webserver and PHP logs for errors and warnings.
There you should find some more details about the internal error.

thanks @atrol.

We found that json_encode() function is not defined.

After installing php-json, there is no error

Thanks for providing feedback.

It's recommended to run the admin/check/index.php script after installation or upgrade.
I implemented the php-json check in 2.25.0 https://www.mantisbt.org/bugs/view.php?id=26974

I recommend to run it now, as you might get some more errors or warnings.