LDAP sync failing

Our LDAP sync is failing. We have not been able to find a solution to this. We currently have Sage X3 version 11 patch 4 with Syracuse patch 8. 

We are getting the following errors:

"TypeError: Cannot read property 'getEntity' of undefined"

"TypeError: Cannot read property '$uuid' of null"

"userEndpoint: endpoint: endpoint is mandatory"

Does anybody know the solution to this or can somebody point us in the right direction for what the error means?