My son built a site for me, because I keep getting an "a is null" message on the site I built in concrete5. He does not have time to help me keep the site updated so I thought maybe I would re-install concrete 5 and start over and build again through concrete5 verses the site he built from scratch (on dreamweaver). Well when I deleted and re-installed his site was picked up (of course). Can I somehow get it to work so I can edit it in concrete 5? I can access it in my host control panel where my other concete5 installs reside, but it does not have a task bar. It is even listed in my projects. I don't know enough to edit the files in my host directory. Maybe someone can tell me which file(s) to look for and what to add. I read somewhere that on this forum that I need to add a line to the footer file?

I have two sites built and can't use either one.Trying different options to fix the problems with both and only getting more confused.

site is artsonthecommon.org