I'm the king of weird errors. everything was fine, then I changed my template to a black one. no tabs show up under profiles now.

IE reports an error:
line 368
char:1
error: 'partscollect.0.style' is null or not an object
code: 0
url:http://airzonabackcountry.com/index.php?option=com_comprofiler$itemit=35$task=userDetails.

I had the exact same issue. I changed templates, and now when I look at my tabs under admin, the first tab - profile - is blanks and I get an error partscollect.0.style is null or not an object - line 310, character 1, Code 0.

Any help would be appreciated. Many thanks,

I get the same thing.

I tried unpublishing all of the tabs but didn't work.

I even tried all of the templates and got the same thing on all of them.