I looked at the post and it appears that it only cures 1/2 of the problem
In gantt.php, line 39:
Replace Line 47 with:
The final replacement should look like this:
Hi, sorry, i just recognized that it is now working again. I set track_errors = off
in php.ini like told somwhere in some old web2project forum hours ago. Now i checked back an found it working...