How to enable Mapping menus in Dynamic CRM plugin integration?

Your software
My Mautic version is: 2.16.2
My PHP version is: 5.6

Your problem
My problem is: Dynamic CRM plugin after authorization doesnt populate the Contact & Company mapping tabs.

These errors are showing in the log: Even after saving & applying menu not visible. Authorization window shows successful message and reauthorization button visible.

Steps I have tried to fix the problem: Tried to check for field variables of lead & company. Enabled menu statically, but no integration fields displayed.
May i know what is the issue in that corresponding plugin?