Vini, welcome to the site. We might be able to help, but, you did not really explain the error or the code.
First, your error message is due to, in my wild guess, one of two possible issues. One, you might have made
a change to the calling line of the function or where the data sent to the function is created. Or, two, you
might have altered the function itself by altering lines in the function code area. Since we do not have any
access to all of that code, we can only guess.
Now, since you are an artist and graphic designer, you might not understand how to handle programming or
editing a large site. Therefore, I am going to mention a few things you must learn. First, and foremost, you
should NEVER make your changes on a live site. You always should have a copy of the live site, usually on
your local computer and test there. Then, when working 100%, you upload the new version to the live site.
You should also keep many levels of backups of the site. You should create a new level of backups every
time you make a large amount of changes and also, on a regular basis such as once a week. In this way,
you can go back one or three levels to repair changes that you made that trashed your site.
Now, with those comments made, onto the error. You will need to look at the code in the site page that is
named “Navigation.php” and look around the lines at about number 530-540 and see what arguments are
being shipped off to the code in the function named “getData()”. The error message is telling you that you
sent in invalid argument to it. Therefore, if the line at #535 is something like, in general terms is
“getData($productID,$salesDate,$salesCart)” You would be sending three values such as a numeric ID for
the product number, a date format for the date of sales and then an entire object which would be the entire
cart for that sale. Without seeing a sample of your code, we have no idea where to start with. But, I would
guess that you have an object passed to this function that you changed somehow.
Well, doubt this helps much, but, HTML and CSS have little to do with a function code issue. Therefore, I
would guess it has nothing to do with changes to HTML/CSS. My guess is that you altered some lines of
code that were PHP code, not HTML/CSS. Also, you mentioned “Live debugging” and fixing some “small
errors”. I would have to guess that one of these changes “broke” the live system. Again, you never test
on a “LIVE” system…
Good luck. Let us know what we can help with. Small samples of code in the area
that is failing will help us. (use PHP tags for showing us samples of your code…)
