We are getting an error message on the contact record that is created when a lead is converted from a lead to an opportunity.

Fatal error: Cannot access empty property in /home/restore1/public_html/crm/modules/DynamicFields/templates/Fields/TemplateRelatedTextField.php on line 166

I've repaired everything there is to repair.
I'm running Version 5.0.0b (Build 3150)

This error only appears on the contact record that is created during the "convert lead" process. All other contact records are fine and do not have any errors.

Any bright ideas?

I am not a programer. I am strictly using end user tools.

Thanks in advance.