Can anyone tell me why this warning message appears on my account page ?

We had a spate of these at SETI@Home, because

BTW, I enabled some PHP flags that show warning and error messages
in the page itself, rather than the Apache error log where it never gets looked at.
This is revealing a number of long-standing problems.
-- D

This one appears to be a 'long-standing' (but previously hidden) 'problem', now visible to team administrators only - it's not on my account page. Errors like this need to be gathered up into clear, precise bundles (what you saw, where you saw it, and any special circumstances) and emailed to David Anderson.

We had a spate of these at SETI@Home, because

BTW, I enabled some PHP flags that show warning and error messages
in the page itself, rather than the Apache error log where it never gets looked at.
This is revealing a number of long-standing problems.
-- D

This one appears to be a 'long-standing' (but previously hidden) 'problem', now visible to team administrators only - it's not on my account page. Errors like this need to be gathered up into clear, precise bundles (what you saw, where you saw it, and any special circumstances) and emailed to David Anderson.

Thanks Richard :)

Fixed by DA :)