Error messages in full reporting

I keep getting error messages in full reporting - it happens when I try to select a date, set up an email report, click on administration, anything really. When I click on ‘go back’ in the error message it sometimes sorts itself out, but it is very hit and miss, and the date selection doesn’t seem to work at all.

Here is the message I get:
Error: Unable to start session.
Debug: the original error was session has already been started by or session_start()

Any help would be greatly appreciated!

Hi @thecassette

thanks for letting us know about this. Do you mind sending us your System report? Either by commenting here (it should be anonymised automatically) or by emailing us at wordpress at ?

I’d be happy to try and reproduce it by installing the same plugins etc.

Thank you! I have emailed the system report.

Thanks for sending the report @thecassette

Do you mind enabling WP_DEBUG temporarily and then loading one of these pages? This should show which plugin is maybe causing the issue. I couldn’t install of your plugins but it’s likely that some plugin is causing notices and it should be visible which one once you enable WP_DEBUG.

Thanks a lot