When I installed JoomDOC using joomla extension manager I got the prompts saying it has been installed successfully. But when I clicked the 'Control Panel' from "Components" menu I get an error "500 JHtmlBootstrap::startTabSet not found. " I have attached the php errors I got with it.

Thanks
G Sovis

I tried to install JoomDOC free version to check features. I mange to install, but when I try to go to the Control Panel from Components menu I get the following error.
500 JHtmlBootstrap::startTabSet not found.

Please advice me what to do.

Thanks

gsovis