As it is the Wibya Toolbar that breaks the page, not the other way round, you should really be asking the support people at Wibya why their product causes conflict under certain circumstances.
The support team here support their own products, but aren't likely to be able to spend a lot of time troubleshooting errors caused by customisations - especially when it is caused by the introduction of third-party software and scripts.
The Add-this toolbar however, seems to be the most popular social-networking toolbar for allowing visitors to submit your page to facebook, twitter etc (over 300 of them). When you select your toolbar and get the code, you can also opt to have a weekly usage analytics report mailed to you.
If you were to include it below your content, you should have no problem.
This is it working on a PowerStore 3 site.