Adobe InDesign CS3 for Mac won't run. Receiving javascript error message 45.

My InDesign CS3 for mac used to work perfectly fine. Lately I receive....

JavaScript Error Code: 45, Error String: Object is Invalid. Line: 387

everytime I open it. If i can get past this sometimes, and try to open a file, it unexpectadly quits.

I install fonts from dafont.com sometimes. I recently installed Photoshop brushes. I download files from emails. Nothing too risky or so I think.

here's the crash report: http://pastebin.com/ATNMknNn

i'm running os x10.6.8.

also, tried the cleaner tool. it didn't work.

thank you!