Problem is resolved with help from Wim (PWSdashboard)
Line 207, change from
$hours_today = (string)( $temp[0] + (round(($temp[1]/60)*10)/10)); // Convert minutes to tenths of hours
to
$hours_today = (string)((float)$temp[0] + (round(($temp[1]/60)*10)/10)); // Convert minutes to tenths of hours
Maybe that is the error blocking the script.
And that was the problem.
Many thanks tot Wim!
Brgds,
Oebel