DTH Development

I'm preparing my project for migrating to Joomla 2.5 and are upgrading all my extensions in advance. I'm currently running DT register 2.7.3a and before upgrading I'm doing a little "spring-clean". I've migrated 2.6 records and removed JEvents sync in ControlPanel - and suddenly in Configuration I get this message at the top: "Model class JomsocialModel not found in file."

What is it?
Do I need to care?
What can I do?

all the best

2.7.3a? Yikes, that's pretty old Before migrating to 2.5, be aware that you must update 1.5 to the latest version of DT Register FIRST, then migrate the data. Instructions will be in the current package.

Also, make sure you don't have our JomSocial plugins installed/enabled if you don't actually have JomSocial installed. Beyond that, you just need to update as you WILL have issues running that very old package.